Serial Number Restoration

This Serial Number Restoration Kit is designed to provide the proper materials to assist investigators in recovering obliterated serial numbers or other markings on firearms and other metallic weapons. When a serial number is stamped into a metal surface, the underlying metal grains are compressed and deformed deeper than the impressed number or mark. This difference in the metal crystal grains causes them to react differently to chemical etching and can, in many cases, allow them to be recovered. The reagents in this kit are patterned after ATF recommendations as taught at the Serial Number Restoration Training Course that the National Firearms Examiner Academy. The kit also includes instructions, acid neutralizer, wet or dry polishing paper, fine file, gloves, safety glasses, cotton-tipped applicators, dropping pipettes, protective oil and clay dam material. Packaged in a sturdy plastic carrying case with fitted foam liner. > More

Serial number restoration by the etching method is commonly used to recover serial numbers or other identifying markings that have been obliterated from firearms, engines, electronics, and other objects. Serial number restoration gels provide improved adhesion for etching on vertical or inclined surfaces. > More

The ability to study and measure the spread and distribution of firearms discharge particles on the victim or on an object can be useful in determining the distance and angle of firearms discharge. Although the traditional methods of examining visible particles are useful, smaller particles and condensed gases are generally not observable. A chemical method of detection and enhancement allows these particles and condensed lead gases to first turn a pink color and then a blue color for accurate determinations.

Contains all reagents needed. Eight sets pre-measured reagents in spray bottles, with Instructions For Use. > More

Latent prints can sometimes be developed on brass, nickel and copper cartridges cases by means of Cyanoacrylate fuming, etching with a Gun Blueing Solution and post-treament with Acidified Peroxide. The principle behind this sequence is that the person handling the cartridge casing will transfer a latent print containing lipids or sebaceous oils to the casing and additionally may transfer other substances, such as lubricating grease, to the casing. These substances will protect metal surfaces directly beneath them from chemical reaction or etching and may provide for the possibility of development by Cyanoacrylate. > More