Tag Archives: Criminal

THE NGI — REALITY IN CRIMINAL IDENTIFICATION’S NEXT GENERATION SYSTEM

A3Imagine information straight from crime scenes biometrically feeding a super-computing, multimodal system of collaborating human identification techniques. A futuristic system beyond IAFIS, the longstanding Integrated Automated Fingerprint Identification System. A new system with hyper-integrated, next generation, biometric database identifiers of laser-scanned tenprints, palmprints, iris and retina recordings, facial recognition, voice printing, tattoo banking, and instantaneous DNA profile matching. An amazing algorithmic system of centralized surveillance. A fantastic system favoring the police.

A4Imagine the cop on the street with a handheld device imaging your eye, searching your face, or scanning your index finger, then uploading via iPhone to the next generation system that searches, identifies, and reports within seconds. Imagine a system with a repository on persons of special concerns—murderers, rapists, and terrorists—that tracks their chip and their criminal life-cycle from the commission of crime to the correctional center.

Think it’s imaginary? Well, it’s not. It’s here. It’s active. And it’s expanding. It belongs to the FBI and it’s called the Next Generation Identification system. NGI for short.

On its website, the Federal Bureau of Investigation, who administers the program, states:

F22“The NGI is the cornerstone that enables our Criminal Justice Information System, CJIS, to meet our growing an evolving mission and continue to build our reputation as a global biometrics leader. The NGI Program Office mission is to reduce terrorist and criminal activities by improving and expanding biometric identification and criminal history information services through research, evaluation, and implementation of advanced technology beyond the AIFIS environment.”

Wow! An ambitious goal Let’s look at how this 1.2 billion dollar baby works.

The NGI is already fully operational in its fingerprinting capacity and is incrementally phasing in other parts of the program in with these biological, biographical, and contextual categories:

Tenprints

220px-Fingerprints_of_Anna_Timiriova_3 (1)Conventional fingerprinting of arrested individuals involves rolling each of the ten digits from nail edge to nail edge as well as impressing ten flats. The “tenprints” were inked onto paper then scanned into AIFIS. The NGI allows real-time scanning and digital direct uploading. The NGI’s use of matching algorithms in its Advanced Fingerprint Identification Technology, AFIT, increased accuracy to 99.6% and its speed to under two minutes.

A9

Palmprints

Previous systems did not include palmar impressions yet statistics show that partial palm prints account for over 30% of latents lifted at crime scenes. The NGI’s digital scanning, recording, and identifying palm prints are already having a huge impact in criminal identifications.

Latents

F3Latent” prints are technically those impressions that can’t be seen with the naked eye and are discovered by the use of amplifying powders, chemicals, and alternate light sources. The NGI lumps these in with “plastic” impressions—those impressed into a mold like wax or grease—and “patents” which are those visible on glass, for instance, and conventionally lifted with adhesive and fixed on slides. All questioned prints are now termed “latent”.

F1The NGI’s advanced matching algorithm technology has three times AIFIS’s capacity in identifying minute details and making identifications. Further, it has ten times the capacity to store unsolved latent prints and randomly searching newly inputted prints to clear cold cases.

Currently, the NGI’s Latent Branch is subdivided into the Criminal Master File, the Unsolved Latent File, and the Civil Repository.

Facial Recognition

A2The NGI system incorporates the Interstate Photo System (IPS) which catalogs millions of criminal mugshots as well as other identification photos like driver licenses and passports. The NGI is accessible through Universal Face Workstations where criminal photos are entered through desktop software and the results are immediately scanned and returned as “ranked candidate leads as investigational tools”. The system is expanding its capability to search facial recognition from public videos like cell phone and surveillance camera material.

Iris and Retina Identification

A5This technology was developed by the military and is incorporated in the NGI system as part of its integrated approach to criminal identification. Current prisoner processing will include iris/retina images recorded and entered into the NGI database. Additionally, patrolling police officers will be equipped with portable scanners to assist in identifying persons in public who cannot produce conventional identification. This mobile technology already exists as MORIS, the Mobile Offender Recognition and Information System, and is a mainstay with the NYPD.

Scars, Marks & Tattoos

A8The SMT Branch is another evolving arm of the NGI where criminal processing allows for images of tattoos, scars, and other markings on suspects to be collected and entered into the overall criminal profile. Technology allows for a search capacity in querying descriptive data in order to find stored images of potential matches.

DNA Database

Currently, all convicted felons of serious persons crimes are court ordered to provide their DNA profiles to authorities. The NGI will be the central repository of criminal DNA profiling with a tremendous search and match capability. This increment of the NGI is being phased-in.

A7

Voice Printing

Recording and  recognizing human voice patterns is an emerging technology and a future project for the NGI program as it rolls out its ambitious program. This will be especially useful in identifying unknown speakers caught in electronic surveillance through bugs and wiretaps in terrorist and criminal investigations.

RISC

A10The Repository for Individuals of Special Concern area of the NGI allows a total packaged profile to be constructed for high-risk offenders, suspected terrorists, and other individuals of special concern. The RISC system is available 24/7/365 and has a response time of less than five seconds. Currently, the NGI’s RISC branch has over 5,000 requests per day from everywhere like street checks to airport security. Its average hit rate is 4.6%.

Think about this.

30 seconds. Tie a shoe. Wave hello. Send a text. Fasten your seatbelt. Kiss your child goodnight.

Now it only takes 30 seconds to identify a wanted fugitive through the Repository of Individuals of Special Concern.

Rap Back

A11The National Rap Back Service is the screening program for monitoring non-criminal issues like job applications for jobs of critical trust such as daycare workers, scout leaders, bank tellers, children’s sports coaches, teachers, and possibly even gynecologists. It also includes people who are under criminal justice supervision like parolees and probationers. Turnaround time for Rap Back reports are typically fifteen minutes and it processes thousands per day.

Tech Refresh

Upgrading and replacing existing software and hardware will be never ending in the struggle to implement the NGI at Federal, State, and Local investigation and enforcement agencies. It’s vital to the system’s success that end users are up to date and avoid quick obsolescence.

A12Beyond being a multimodal biometric identification database program, the NGI will also align with the Personal Identity Verification (PIV) cards that are being developed by NIST, the National Institute of Standards and Technology. These are credit-card sized pieces designed to be carried on your person and contain a chip encoded with your entire biometric profile—tenprints, palm prints, iris/retina image, SMTs, DNA profile, and your voice pattern. While elective for everyday citizens to apply to the program, soon PIV’s will be mandatory equipment for mobile felons.

A13So, the imaginary, fantastic world of biometric identification and super-computed, centralized civilian surveillance is here. In 2016.

Makes me wonder what’s coming in the future. I suspect a biometric chip surgically implanted into high-risk offenders that permanently identifies and GPS tracks their existence. We’ll know where they are. Who they’re with. And what they’ve done.

And, hopefully, stop what they’re about to do.

WHO REALLY KILLED JONBENET RAMSEY?

A41On December 26, 1996, the beaten and strangled body of six-year-old JonBenet Ramsey was found hidden in the basement of her Boulder, Colorado, home. Immediately, police and media suspicion focused on her wealthy parents, John Bennet Ramsey and Patricia (Patsy) Ramsey, as being responsible. Nowtwenty years laterthe child beauty queen’s cold case has little new to offer except for the recent suggestion that JonBenet never really died and that she’s actually the current pop-star, Katy Perry.

A31Setting stupid conspiracy theories aside, the fact remains that someone viciously slaughtered JonBenet. The little girl became a cultural obsession and the person or persons guilty of JonBenet’s death were never prosecuted. Was it a lack of viable suspects? Lack of admissible evidence? A homicide investigation mishandled right from the start? Or was it failure to properly decipher the murder mystery’s most important clue—the ransom note?

Here’s a look at what the case facts tell us about who really killed JonBenet Ramsey.

Patsy Ramsey claimed to have come downstairs to the kitchen at five o’clock on Boxing Day morning and found a two-and-a-half page, hand-written ransom note on the landing of their secondary staircase. The author directed the letter at John Ramsey and claimed to represent a group of individuals from a foreign faction who were “in possession” of JonBenet. The note demanded a ransom of $118,000 be paid in certain bills or JonBenet would die.

A2Boulder Police recorded Patsy Ramsey’s report being phoned in at 5:51 am. Two patrol officers attended and took basic information but did not treat the Ramsey house as a crime scene. It was not secured, nor searched, and an unrecorded number of people had access to the residence until early afternoon when a detective took over and asked a family friend to assist John Ramsey to search the house for “anything unusual”.

The recorded events are confusing but it’s said John Ramsey located JonBenet’s dead body in a far corner of a basement wine cellar, covered with her bedroom blanket. She had a ligature cord around her neck, her hands were bound above her head, and her mouth was sealed with duct tape. John Ramsey apparently removed the tape and carried the body up to the living room where it was laid in front of the Christmas tree. The police were called back and the case began being treated as a homicide.

A32A forensic crime scene examination identified several points of unsecured ingress to the house but no sign of forced entry nor anything to clearly suggest an unauthorized intruder had been present.

Prominent was the ligature or cord around JonBenet’s neck that was tied to a wooden handle, described as a “garrote”. It was physically matched to a broken paint brush handle in Patsy’s art room which was in the basement, near the wine cellar. Similar pieces of cord were also found in the home. As well, the pad which the note-paper originated from was located on the main floor, as was the pen used to write it.

The Ramsey parents were not formally interviewed, no statements were taken, and continuity of the note—being a prime piece of evidence—as well as its forensic treatment was questionably handled.

A10The pathologist attended the residence at 6 pm and did a cursory examination of JonBenet’s body before removing her to the morgue. She was dressed in a white nightie and white panties with white tights overtop. The panties and tights were soaked in urine. Postmortem changes were advanced with rigor mortis already passing and early decomposition presenting.

Though the stages of mortis are not precise science for conclusively identifying the time of death, the body’s physical condition suggested that JonBenet had been dead for a considerable time, estimated between 10 pm the previous evening and no later than 5:51 am when the police report was received.

In pathologist John E. Meyer’s words — “Far closer to 10 pm than to 5 am.”

JonBenet’s autopsy determined her cause of death as “asphyxia by strangulation associated with craniocerebral trauma” and the medical diagnosis was:

I. Ligature strangulation

  1. Circumferential ligature with associated ligature furrow of neck
  2. Abrasions and petechial hemorrhages, neck
  3. Petechial hemorrhages, conjunctival surfaces of eyes and skin of face

II. Craniocerebral injuries

  1. Scalp contusion
  2. Linear comminuted fracture of right skull
  3. Linear pattern of contusions of right cerebral hemisphere
  4. Subarachnoid and subdural hemorrhage
  5. Small contusions, tips of temporal lobes

III. Abrasion of right cheek

IV. Abrasion/contusion, posterior right shoulder

V. Abrasions of lower left back and posterior left lower leg

VI. Abrasion and vascular congestion of vaginal mucosa

VII. Ligature of right wrist

VIII. Toxicology

  1. Blood ethanol – none detected
  2. Blood drug screen – no drugs detected

A23From reading this, it’s clear JonBenet received a massive blow to the upper right of her head from contact with a blunt object, approximately an hour or more before death. This is supported by the contusion (bruise, not a laceration or cut) to her scalp, the linear fractures to her skull, and the subdural (underlying) hemorrhaging (bleeding) in her brain. This cannot occur after death and the known pathology established a considerable time period elapsed between when the blow was administered and when the cardiovascular system stopped functioning. The pathologist opinioned that JonBenet was alive but unconscious for an hour, possibly an hour-and-a-half, before she was strangled.

It’s also clear that ligature asphyxia (strangling with the cord) was her death’s triggering mechanism and this is corroborated by the presence of petechial hemorrhages (tiny bloodspots) in her eyes and on her face. This is a classic symptom of mechanical strangulation and is peculiar to the airway being violently interrupted.

A16The presence of various abrasions and contusions are evident of physical violence being inflicted on JonBenet prior to death, as is the violation of her vaginal area. Her cheek abrasion is consistent with a slap to the face, her shoulder and legs marks are consistent with her still-alive body being roughly handled as if dragged, but caution must be taken in interpreting her vaginal injury as being consistent with sexual assault.

There was no presence of semen, however some blood spotting was noted in her underwear. Later forensic examination would identify a foreign pubic hair on her blanket and an unknown DNA sample on her underwear that was consistent with a male contributor.

The police and district attorney’s investigation focused on the improbability that a total stranger would break into the home, severely wound JonBenet, then kill her at least an hour later after packing her body from an upper bedroom and down two floors to the basement of a house in which three others were present—all the while hanging around to write a lengthy note.

A27From the start, Patsy Ramsey’s behavior was suspect—as was her husband’s. Though there was no suggestion of previous child abuse in the home, it was well known Patsy Ramsey selfishly promoted her daughter like a trophy doll who she desperately wanted to shine in fame and fortune.

As police and media attention centered on the Ramseys, they limited their contact with investigators and quickly “lawyered-up” until a controlled, counter-offensive in the media could be established.

A3The evidence against the Ramseys was examined by a grand jury empaneled during a ten-month period in 1998. The jury returned an indictment against John and Patsy Ramsey on charges of child abuse resulting in JonBenet’s death but was quashed by the district attorney who felt there was no reasonable likelihood of conviction. The grand jury’s findings were sealed and only released to the public in 2013, seven years after Patsy Ramsay’s death from cancer.

To this day, the smoking gun in JonBenet’s homicide is the alleged ransom note.

If the note is legitimate, then it’s a kidnapping that went sideways. If it’s fraudulent, it’s a murder staged to look like a kidnapping. Regardless, there’s no doubt the note’s author is responsible for killing JonBenet and it’s within the note where the killer reveals their true identity.

Let’s look at it:

A12

The note needs to be examined in three ways.

First—was there any forensic evidence present to physically identify the author? I can’t imagine it not being fingerprinted nor examined for DNA, however I can’t find any internet reference one way or the other and existing photos don’t show the normal discoloration associated with chemically checking for fingerprints on paper.

A33Second—what do forensic handwriting analysists say about the writer? A number of document examiners have analyzed the note and have eliminated John Ramsey as well as fifty-three other subjects as the author. But, they cannot rule Patsy Ramsay out as penning it. To be fair, no one conclusively states she was the writer but all agree the author intentionally attempted to disguise themselves.

Third—what does the science of statement analysis tell us? It’s here where the killer’s identity is revealed.

Let’s look at the note again:

*   *   *

Mr. Ramsey,

Listen carefully! We are a group of individuals that represent a small foreign faction. We don respect your bussiness but not the country that it serves. At this time we have your daughter in our posession. She is safe and unharmed and if you want her to see 1997, you must follow our instructions to the letter.

You will withdraw $118,000.00 from your account. $100,000 will be in $100 bills and the remaining $18,000 in $20 bills. Make sure that you bring an adequate size attache to the bank. When you get home you will put the money in a brown paper bag. I will call you between 8 and 10 am tomorrow to instruct you on delivery. The delivery will be exhausting so I advise you to be rested. If we monitor you getting the money early, we might call you early to arrange an earlier delivery of the money and hence a earlierdelivery pick-up of your daughter.

Any deviation of my instructions will result in the immediate execution of your daughter. You will also be denied her remains for proper burial. The two gentlemen watching over your daughter do not particularly like you so I advise you not to provoke them. Speaking to anyone about your situation, such as Police, F.B.I., etc., will result in your daughter being beheaded. If we catch you talking to a stray dog, she dies. If you alert bank authorities, she dies. If the money is in any way marked or tampered with, she dies. You will be scanned for electronic devices and if any are found, she dies. You can try to deceive us but be warned that we are familiar with Law enforcement countermeasures and tactics. You stand a 99% chance of killing your daughter if you try to out smart us. Follow our instructions and you stand a 100% chance of getting her back.

You and your family are under constant scrutiny as well as the authorities. Don’t try to grow a brain John. You are not the only fat cat around so don’t think that killing will be difficult. Don’t underestimate us John. Use that good southern common sense of yours. It is up to you now John!

Victory!

S.B.T.C

*   *   *

A34

 

The first thing that comes to my mind when reading the note is that it’s nonsense.

A37It’s complete and utter bullshit and here’s why:

A35

  • It’s very long with a lot of unnecessary, redundant information. It’s written on three pieces of paper which took a considerable amount of time to compose. True ransom notes are exceptionally rare and all are short and to the point: “We have your daughter! We will kill her if you don’t give us X-amount of money by __!. Wait for instructions!! DO NOT call the police or she dies!!!
  • The writer introduces themself as representing a “group of individuals from a small foreign faction“. Foreign? Faction? Who calls themselves a foreign faction?
  • Patsy had been up an hour before calling police

    Patsy had been up an hour before calling police

    The writer states to not respect Ramsey’s business, but not his country then changes the message by striking out “don’t” to reflect a friendlier tone.

  • The asking sum of $118,000.00 is a bizarre number. Some examiners equate it to a similar salary bonus amount John Ramsey recently collected but how would a foreigner know if it’s even in his bank account never mind how much?
  • Calling “tomorrow between 8 and 10 am” indicates the note was written before midnight on December 25th.
  • “The delivery will be exhausting so I advise you to be well rested” indicates someone thinking about a lack of sleep before the event is exposed.
  • And hence” is a unique phrase that’s rarely used except in very formal correspondence or in biblical phrases.
  • A18There are obvious misspellings in common words like “possession” and “business” while more easily erred words such as “adequate”, “attache (with the accent)”, “deceive”, “deviation”, and “scrutiny”. Otherwise, the writer uses proper punctuation, grammar, and sentence structure which indicates an attempt at disguise by a person with a fair degree of education.
  • The use of exclamation points in only the opening and closing is not realistic of a desperate person’s threat. You’d expect emphasis being put on the instructions to get money and threats to retaliate.
  • Beheaded” and “stray dog” indicate a feint towards some sort of middle-eastern ethnic decoy.
  • Proper burial” is indicative of someone who knew what JonBenet’s final disposal would be. Burial was the accepted practice in the Ramsays’ religious faith, rather than cremation.
  • The phrase “two gentlemen watching over” stands right out. “Gentlemen” being a term used in a ransom note? Totally unrealistic. And “watching over” is another term like “and hence” where it doesn’t remotely resemble normal speech, rather it reflects a biblical overtone where “God watches over”.
  • A44I advise you not to provoke them” and “I advise you to be rested” are passive statements and reflect a feminine touch.
  • Four times the writer uses the phrase “she dies.” If JonBenet was still alive when the note was written, the author would likely use the term “she will die”. This indicates the writer knew JonBenet was already dead.
  • The note’s address changes from “Mr. Ramsey” being used once to “John” being repeated three times. This is far too familiar for an unknown kidnapper and strongly indicates the writer knew John Ramsey personally.
  • The closing terms “Victory!” and “S.B.T.Cappear cryptic and of some personal, religious significance to the writer.

*   *   *

A45A principle behind the science of statement analysis is that truthful people rarely use synonyms. They remain consistent in language whereas deceitful people change language and weave in synonyms to distract. Another principle is that people expose their psychological profile in their writing.

So what does the JonBenet Ramsay note say about the author?

It’s clearly a deceitful attempt to distort the facts, using unrealistic, bizarre, and unbelievable demands to shift attention from the reality of the situation. It’s apparently written by a woman of higher education, with a religious background, familiar with John Ramsey, who can’t bear to bring JonBenet’s name into the equation, yet cryptically reveals a personal message.

A47It’s written in characters that can’t be eliminated from Patsy Ramsey’s known handwriting and it was written with a Sharpie pen and foolscap paper found in her home—the home in which JonBenet was murdered and who’s body was stashed on the cold basement floor.

Patsy Ramsey denied culpability until her death but denials are cheaper than a thrift store suit. A look at her psychological profile is telling.

A48Patsy Ramsay was a beauty queen, herself—crowned Miss West Virginia in 1977. She graduated from university with a B.A. in journalism and was a devout member of the Episcopalian church and a wealthy socialite in her community. Perversely, she flaunted an air of modest integrity while flogging every chance to sexually exploit her six-year-old daughter in front of every pageant and camera she could find.

Patsy Ramsey was an educated, articulate, and calculating woman. She was also very religious.

It’s in the Bible where the key to the ransom note’s lock is hidden.

The terms “watching over” and “and hence” are consistent with a religious mindset and they are known to be used in the Ramsey family Christmas message which Patsy wrote the year after JonBenet’s death.

The numeric figure “118” is highly revealing and it fits with a notable Bible passage recognized by the Episcopalian faith. It’s found in Corinthians 1:18.

For the word of the cross is to those who are perishing foolishness, but to us who are being saved it is the power of God.”

A46Significant are the note’s closings—“Victory!” and “S.B.T.C”. Victory is well established as a Christian slogan which refers to Christ’s triumph by rising from the dead and symbolizing the triumph of good over evil and the forgiveness and everlasting salvation of a soul from sin. “S.B.T.C” is the well-known acronym for “Saved By The Cross.”

The “Victory” reference is also revealed in Corinthians 15:51-57.

Behold, I tell you a mystery; we shall not all sleep, but we shall all be changed, in a moment, in the twinkling of an eye, at the last trumpet; for the trumpet will sound, and the dead will be raised imperishable, and we shall be changed. For this perishable must be put on the imperishable, and this mortal must be put on immortality… then will come about the saying that is written “DEATH IS SWALLOWED UP IN VICTORY. O DEATH, WHERE IS YOUR VICTORY? O DEATH, WHERE IS YOUR STING?” The sting of death is sin, and the power of sin is the law; but thanks be to God, who gives us the victory through our Lord Jesus Christ.

In my opinion, a convincing case is made that Patsy Ramsay was the author of the ransom note and, therefore, the person who really killed JonBenet.

A25It’s also likely that John Ramsey had some knowledge and was covering up for his wife. He’s already had a previous daughter die—now a second—and he couldn’t bear to lose the rest of the family. Only he will know.

But this still leaves the question of why Patsy Ramsey killed her daughter? What were the horrific circumstances that led to such a senseless, barbaric crime?

I think the best theory is offered by Steve Thomas who is the original Boulder detective who investigated the case and wrote the book “JonBenet—Inside The Ramsey Murder Investigation“.

Detective Thomas postulates that Patsy and John Ramsey returned to their home around 10 pm Christmas Day after a social event. Patsy checked on JonBenet and found she’d been bed-wetting again. At the time, Patsy was already on emotional overload—about to pop a breaker. She was under severe psychological stress with heavy socialite commitments, seasonal depression, struggling to face her fortieth birthday, keeping the perfect faceand… who knows what all else.

A50With temper stretched, Patsy severely admonished JonBenet for the urinary mess and likely did an aggressive wiping simulation on her daughter’s crotch, accounting for the “abrasion and vascular congestion of vaginal mucosa”. This escalated to a violent event where JonBenet’s head was smashed into a hard, blunt surface such as a doorframe or piece of furniture which rendered her unconscious with a potentially lethal brain injury.

Possibly thinking JonBenet was dead and probably panicking, Patsy went into damage control which may have involved John Ramsey at this point. It’s inconceivable to think he didn’t know or at least suspect something.

Somewhere during the next hour to an hour-and-a-half, JonBenet was finished off with a garrote fashioned from available materials, her body was moved, and the stage was set to simulate a ritualistic killing. A plan was then devised to deceive the authorities by way of a concocted ransom note which contained a cryptic justification with some hope of divine reconciliation.

A4But what’s really evident to me—why I truly believe both Patricia and John Ramsey were culpable in JonBenet’s murder—is the date on the inscription they jointly approved for the headstone on their daughter’s grave. 

They knew she was dead before midnight.

5 WAYS SHERLOCK HOLMES SHAPED MODERN FORENSICS

“In solving a problem of this sort, the grand thing is to be able to reason backward.” 

AC1So wrote Sir Arthur Conan Doyle as his literary counterpart, Sherlock Holmes, in A Study in Scarlet. Doyle was a scientist and a trained physician, so when he imagined the great detective, he used science to set him apart from other crime practitioners.

Where a policeman of the day would round up the usual suspects and beat a confession out of an unlucky bloke, Holmes employed deduction, the scientific method, and an acute sense of observation. Here’s five of his techniques that were ahead of his time.

1. Detective work.

 “I am glad of all the details … whether they seem to you to be relevant or not.”
– The Adventure of the Copper Beeches

AC4The fictional Holmes revelled in tiny details, and caught everyone by surprise by defining a subject with details relating to height, weight, gait, carrying a load, occupation and other surprising summaries simply by observing a wet foot print in a garden. He also explained how the evidence led to his accurate conclusion. And when the perpetrator was finally discovered and captured, the physical description was uncanny.

In addition, his ability to ‘reason backwards’ (looking at the criminal act and working his way backwards to lead him to evidence) helped guide him to a conclusion, a motive, and a culprit.

2. Fingerprints.

 “As you may know, no two human fingerprints are ever alike.”
– The Brass Elephant

AC6Holmes identified and used fingerprints initially in The Sign of Four, published in 1890. Scotland Yard did not adapt fingerprint recovery, comparison, and identification process until almost 11 years after The Sign of Four was published. He did not use fingerprints as the defining evidence, however — generally, the case was irrefutably solved by a variety of clues leading to the correct solution.

In The Adventure of the Norwood Builder, Inspector Lestrade thought he had his murderer when he was able to match a bloody print to John Hector McFarlane, an obvious suspect. Holmes was able to prove that MacFarlane was innocent.

Today, fingerprints are a standard method of identification for human individuals. Now stored in computer databases, analyzed and compared within seconds, fingerprints still require corroborating evidence to tell the whole story.

3. Ciphers.

 “But what is the use of a cipher message without the cipher?”
– The Valley of Fear

AC11In many cases in Victorian times, clues were hidden in ciphers, or coded messages which required a ‘key’ to ascertain letter substitutions. In The Dancing Men, Holmes analysed 160 separate cyphers, determined that the letter ‘e’ was the most common letter in the English language, and was able to proceed to the answer. In “The Gloria Scott”, he deduced that every third word in lines of gibberish created the message that frightened Old Trevor.

Many of these cipher techniques were applied during the World Wars to decipher messages from the enemy, and law enforcement in many countries have also worked through ciphers using procedures described by Conan Doyle.

4. Footprints.

“Footprints?” ” Yes, footprints.” “A man’s or a woman’s?”
“Mr. Holmes, they were the footprints of a giant hound.”
– The Hound of the Baskervilles

AC10From the very first story in the Holmes series to the 57th story (The Lion’s Mane from 1926), 29 of the 60 stories revealed and solved footprint evidence. Footprints were found in soil, mud, and clay. They were on carpet, in snow, ash, and even on drapes and doors — each mark was worth discussion, each print told a story that was instrumental to the outcome.

Sherlock Holmes ‘wrote’ an educational treatise on the preservation of footprints, entitled “The tracing of footsteps, with some remarks upon the uses of Plaster of Paris as a preserver of impresses”. The techniques so described have become a mainstay in preserving prints of shoes, tires, tools, and other depressions by police departments worldwide.

5. Handwriting.

“We must look for consistency. Where there is a want of it we must suspect deception”
– The Problem of Thor Bridge

In Victorian London, handwriting was more prevalent than it is today.

AC12Holmes was able to deduce many details from the written word. By inspecting the pressure, angle, swirls, and consistency, Holmes could tell the gender, class, and maturity of the author. He could also make determinations about the character of the person whose penmanship was under scrutiny. In The Norwood Builder, Holmes determines by the timing of the imperfections in the scrawl of a will, that it was written aboard a train. Knowing that such an important document would not be transcribed in such a fashion, he correctly assumed duress.

Today, handwriting analysis is used to determine forgeries, psychological profiling, and alterations in handwriting due to the influence of drugs, alcohol, duress, exhaustion, or illness.

The ransom note left at the scene of the JonBenet Ramsey murder is a prime example. It was intensely scrutinized and attempts were made to tie it to one of the parents.

The results remain inconclusive.

*   *   *

AC13This article was originally published by my friends at Forensic Outreach, one of the best forensic education sites on the internet. They’ve now launched a new site called CASE Academy which I’m proud to support.

AC15Doug Filter wrote this article for Forensic Outreach. He’s worked in legal support for three decades, developing visual communication tools that help litigators, prosecutors, and defense attorneys tell stories in court. Doug is an author, presenter, and designer. He’s worked on cases ranging from mapping body locations by interviewing a serial killer to explaining and animating the life style of trout in a water pollution case.

Doug’s speciality is learning scientific, technical, medical and complex case details and then explaining them to an audience of fact finders in a courtroom setting. He’s worked in jurisdictions in North America, South America, and Europe.