Colonel Ahmed Al-Marri, Director of Crime Scene Management at the Dubai Police’s General Department of Criminal Evidence, said that there are defendants who leave behind what is known as a psychological fingerprint, or the criminal method associated with a particular criminal, such as a thief with colon disorders who used to defecate at the crime scene, and another highly professional He sneaks like a ghost, acts in a stylized manner, enters and opens the store and leaves without a trace, to the point that Dubai police arrested him before a number of his victims realized that their stores were stolen.
Al-Marri told «Emirates Today» that the crime scene team is keen to deal accurately with all the details of the crime scene, because a simple purpose or a weak effect may be the reason for exposing a major crime and condemning its perpetrators, pointing out that there is something known as psychological imprint, It is usually left behind by criminals who are used to committing certain crimes, such as: rape and harassment of children or those with certain diseases.
He added that among the cases recorded in this way is a thief with disorders in the colon, and from being overly nervous during the commission of the crime, he stands out in its place, until he has become famous among the detectives, and once his effects were monitored he was brought in and arrested.
He pointed out that there are methods associated with specific criminals, such as an Asian thief who infiltrates the country, and is characterized by sharp intelligence, and a unique style as he does not storm stores or homes that he targets in a traditional way, but rather has precise equipment that he uses to open doors as if he was a magician, regardless of the type The locks, then opens the storage in the same way, seizes its contents and quietly closes everything as if nothing had happened, to the point that some shop owners were suspicious of their employees and accused them of theft, but forensic experts and the crime scene were able to find that there was an intruder implementing that Thefts, and he was arrested the first m In 2002.
After about 10 years, the crimes were repeated in the same way, and with the Dubai police keenness to document criminal methods and fingerprints, I immediately wrote the name of the accused as a first suspect, despite his deportation from the state, and his pictures were distributed to traffic patrols.
During an inspection tour in the Al-Sabkha area after Fajr prayer, a man with the same physical features and specifications was suspected, immediately surrounded, and was unable to escape to its magnitude, and it was found that he had just stolen three stores, and the investigation team waited until the owners of the shops discovered in the morning and reported the theft, Without imagining that there is a surprise awaiting them is the arrest of the accused and his possession of stolen goods.
Al-Marri explained that the crime scene expert must have the power of observation and accuracy, so the Commander in Chief of Dubai Police, Major General Abdullah Khalifa Al-Marri, pays great attention to this category, because they are concerned with dealing with all the minute details at the crime scene, so he ordered that patrol officials be subjected to courses on how to maintain On the crime scene.
He said that preserving the crime scene is divided into two parts: The first: Not to add evidence, such as throwing a cigarette butt, because a simple behavior like this may confuse the entire workforce and waste a long time searching for a cigarette smoker, analyzing it and examining DNA.
As for the second section, it is not to destroy evidence, such as moving a car from the place, pointing out that «there is an important issue he worked on previously, witnessing a chase between the patrols and the accused who supported his hand on a car that was standing in the place leaving an impact on it, and was able to escape from the chase and upon return To the car, we were surprised that she had left the scene, and we lost important evidence, but the accused was arrested later. ”
Dubai Police succeeded in uncovering crimes and arresting the perpetrators through their psychological fingerprints.