Charlie Kirk Shting Criminal Hunt included rare medical-legal technical advice

While the research took place for the assassin of the conservative political activist Charlie Kirk, the suspect identified on Friday as Tyler Robinson, the police analyzed all the possible advances. An element of evidence in which they dressed: an printing printing drawn from the position of the sniper.

Friday morning, before the apprehension of Robinson following very human methods – it was reported that Robinson offered what could be a form of confession to family members, who then shared the information, which led to his surrender – FBI agent, Robert Bohls, said that the investigators had collected a “impression of shoes, a print Palm and an imprint of the scene” crime for analysis.

The forearm fingerprints are not commonly collected, according to the experts with whom CNBC has spoken.

“It is very unusual,” said Patrick McClain, a Texas -based criminal defense lawyer and retired military judge of the Marine Corps. McClain explained that, generally, when an printing of the forearm is mentioned, the authorities collected DNA or other skin residues from the surface against which the forearm was in a hurry.

“It is simply a mold of a footprint that remains in a lying position lying with forearms on the bridge for a while,” said Jeff Wenninger, founder and CEO of consultants in application of the law, who worked with the dignitary of the LAPD elite and with the secret services in the protection of dignitaries. “It would be similar to a shoe or impression of shoes that they raise with a mold,” he added.

Wenninger says that an printing printing can be used to corroborate identification objectives, such as unique characteristics such as scars or imprint of known clothes.

“Like fingerprints, a forearm impression can be unique enough for identification if it is of sufficient quality,” he said.

It could also have a forensic value if a biological material such as perspiration, body oils or Touche DNA can be recovered, and with other evidence, it can corroborate or contradict declarations of witnesses or video sequences.

The new technology gives the forearm a wider window on a possible suspect. Physical impressions have been used in forensic surveys for years, said Wenninger, but in recent years, the methodologies to identify and compare significant significant brands have evolved, and the digitization technology to analyze the fingerprints has improved so much that “it seems new”.

3D digitization has revolutionized this science, transforming the printing of the forearm into a tank of previously unexploited information. An imprint alone cannot determine factors such as ethnicity and sex, and investigators would always depend on the question of DNA footprint or other biological evidence.

“It is a new exploration of criminalics, including other skin prints. But it is not like a finger / print of palm that is 100% unique,” said Toby Braun, CEO and founder of American Special Investigative Group, specializing in executive protection, monitoring of threats and intelligence and complex investigations.

According to Braun, a forearm impression does not identify a person from a database as a fingerprint. “A forearm impression is not considered a main form of forensic evidence in the same way as a digital imprint,” he said.

A forearm impression is not a main form of evidence because there can be an ambiguity, according to Braun. For example, while the friction edges on the fingers and palm trees are unique to each individual, the skin of the forearm does not have the same detailed, permanent and individualized peak patterns.

The difficulty of residue of the forearm is that even in the most prominent cases, all DNA would take some time to obtain results, and that if the person is not in a known database, it will not be beneficial as long as there is no arrest. “There will not be too many people on the roof of the building,” said McClain. “But it is not like a fingerprint; there is no unique structure in the forearm of everyone.”

According to McClain, cases have been tried with forearm prints if there is something unique, such as a tattoo or healing model, “but I have never done one of these cases; they are definitively unusual,” he said.

As in any human hunting, in the hours following the shooting, the emphasis was put on the search for the shooter and the arrest procedure. “Additional evidence of the most solid case will be developed later, because the investigation is still underway,” said Braun, adding that the authorities just need a probable cause of an arrest, and evidence beyond doubt is for a trial. “But this is developed as the case progresses,” he added.

Dan Gerl, founder and general lawyer of Next Law, says that for the “model” of a forearm to be raised or photographed as proof, the subject should have exerted sufficient pressure on a receptive surface and that prints are most useful as supporting rather than primary evidence, for example supporting a request for a search warrant to request additional evidence.

“In certain circumstances, forearm fingerprints can also be eligible in court. Like all scientific evidence, the prints forearms should be admitted by a testimony of a qualified expert and pass the tribute reliability tests,” said Gerl. This type of forensic evidence would probably meet more procedural obstacles to erase before being admitted to the trial, he added.

Robinson was arrested for suspicion of aggravated murder, criminal liberation of a firearm and obstructing justice by the police. Prosecutors will finally decide on charges he faced in court, which should be deposited on Tuesday.

In the end, Tyler Robinson’s arrest has summed up the human bonds rather than medico-legal, and some criminal experts say that a decisive characteristic of recent political violence is the underlying desire for a killer to be caught rather than planning and meticulously avoiding capture.

Bryanna Fox, former FBI special agent of the FBI and professor of criminology at the University of Florida in the South, says that progress in crime technology has been remarkable in the past two decades, and that some criminals may not be aware of the level of criminalic available for the application of the law. “He may have thought:” Oh, I can leave my printing prints and that will have nothing, “said Fox.

But she thinks that another state of mind was perhaps at work. By comparing the Robinson affair in the case of Luigi Mangione, which murdered a health manager last year, Fox thinks that criminals conducted ideologically can care more about sending a message than escaping the consequences for their crimes.

This means that they may not think of the evidence that they leave as much as other criminals, whether they are impressions, their face or the way they have a weapon. “Attention helps to give more oxygen to what an ideologist means,” said Fox. “In a way, they are sort of stipulated to the fact that they will be caught and agree to give evidence. They do not want to get caught immediately, but their main mission is to reach the goal, which is to kill their target,” she added.