Shortly after a weapon is fired, residues are most likely to be deposited on the thumb web and the back of the firing hand of a shooter.

Question

Quizplus · Accepted Answer

When a weapon is fired, residues from the combustion of the primer and gunpowder are expelled from various parts of the firearm, including the muzzle, cylinder gap (in revolvers), and ejection port. These residues can deposit on the shooter's hand, especially in areas closest to these parts of the firearm, such as the thumb web and the back of the firing hand, due to their proximity to the weapon during discharge.

Shortly After a Weapon Is Fired, Residues Are Most Likely