Each bullet bears the signature of the barrel from which it came out.


The Ballistics Branch of the Forensic Medicine Institute (ATK) Ballistics Branch Directorate, which is affiliated to the Physics Specialization Department, examines the weapons, bullets, shot residues, cutters and piercing tools sent by the courts, judges and prosecutors, and prepares a report by seeking answers to questions.

Microscopes, equipment and various devices are used to examine the evidence in the sealed bag, such as the type of weapon fired, the number of shots fired, the shooting distance, the shooting angle, and the shooting direction.

The trace left by the grooves and sets in the gun barrel that allows the bullet to rotate around its own axis is examined through a microscope, and it is tried to determine from which gun the core was fired.

In addition, if there is a sent weapon, an endoscopy camera is inserted into the barrel of the weapon to see if there is a match between the weapon and the bullet, and the groove and set marks are examined.

The needle mark on the back of the bucket is also examined with a microscope by experts to reveal which type or brand of weapon the bucket might have been thrown from.

One of the duties of the Ballistics Department is to examine the clothing of the person in cases resulting in injury or death. Just as a gunshot residue remains on the hand of the person shooting the gun, each bullet core leaves a chemical residue called “shot residue” on the clothing as it enters the human body.

Experts, who apply tests such as the developed griess test and sodium rhizozonate to the shot residues on the evidential clothing sent by the judicial authorities, can thus determine how far the person was shot.

??????After examining whether the weapons captured by the judicial authorities and sent to the branch are suitable for shooting, the officers taking all necessary precautions in the shooting range inside the branch shoot with a rifle or pistol.

“A conclusion is reached with our investigations and the information obtained in the file”

Ercan Arslan, the Ballistics Branch Manager, made a statement to the AA correspondent regarding the studies carried out, and stated that they made an examination of the items of interest to the branch.

Arslan continued:

“We can be asked whether the item is within the scope of Law No. 6136 on Firearms and Knives. We can be asked whether the bullet cores and cartridge cases found at the crime scene were fired from the suspect gun, or whether the bullets, casings, or how many guns could have been fired among themselves if there was no suspect gun. “We can ask questions about what we call weapons, knives, sharp, piercing and injuring tools. We also have clothing inspection questions. Questions can be asked about shooting distance. We also conduct investigations according to the warrant, and forward our reports to the relevant authorities as soon as possible.”

Arslan stated that the shooting distance examination was done on the clothes, and said that if there was a hole on the clothes, they did an examination.

Arslan said, “First, we do the physical examination. We start with the determination of the entrance and exit holes specified in the autopsy report. Then we decide on the chemical we will use, then we do the necessary chemical analysis and report the results we have obtained.” said.

Arslan stated that they carried out investigations to determine what kind of weapon a person was shot from which angle and from what distance, and gave the following information:

“The question, let’s say, ‘Suicide?’ If it is such a question and if it concerns the board, we send it to the relevant board together with our report after we make the necessary investigations. When sending it to the board, we also send a copy of the report to the authority that asks us to conduct the investigation for informational purposes. We ask ‘Suicide or not?’ “We do not make such a comment, but we are helping. A conclusion is reached with our investigations and the information obtained in the file.”

Ercan Arslan explained that they shoot at the shooting range with 5, sometimes 25-30 guns during the day, and said, “The guns called blanks were actually produced as sound guns. Later, these guns were changed in the workshops that we call under the stairs, and they were made to fire special cartridges. The barrels of some of them were changed and they were made to fire cartridges containing bullets by attaching a rifled set barrel. We are trying to set a barrier to the possibility of being produced in such a way.” he said.