or fleeing the crime scene. However, these devices will be limited as they cannot determine whether the weapon was used in the shooting, the person is a criminal, or if they are just carrying an illegal concealed weapon. In any event, when the suspect is apprehended, whether through traditional police methods or by these new weapon detectors, the officer is then able to look for and perform other tests for evidence on the suspect.
             When the suspect is taken into custody, the suspect should not be handcuffed, handled and processed in the traditional means, the suspect should not have their hands cuffed arbitrarily cuffed behind their back as it has the tendency to dislodge gunshot residue form the hands of the suspect. Instead, the suspect should be cuffed with his hands apart, if possible, as to minimize the movement of the hands, which may dislodge the residue from the gunshot. If plastic handcuffs are available, this may be appropriate as so to lend greater credence to the trace metal testing discussed later. In either case, if gunshot residue tests and trace metal tests cannot be performed immediately, the suspect's hands should be placed in paper bags so as to preserve the trace residues left on the hands of the suspect for analysis.2
             The first type of evidence the officer can look for is the macroscopic evidence left by the mechanism of the gunshot. These are: blood splatters on clothing, holes and burns in clothing, unburned powder on the hands, and the tell-tale marks from firing an automatic pistol incorrectly. Visible blood splatter should be photographed in the overall, close up, and macro styles both with and without a scale, then collected using a moistened (by means of distilled water) cotton swab then placed in a stopper-less glass test tube and allowed to air dry. This evidence can then be transported to the crime lab for DNA analysis. In addition, known samples of the DNA of both the victim and the s...