What are condom exchangeable traces composed of?

Question

What will be an ideal response?

Answer 1

Particulates: Condom manufacturers add finely powdered particulates to prevent a rolled-up latex condom from sticking to itself. Particulates found in different brands include cornstarch, potato starch, lycopodium (a powder found in plants), as well as amorphous silica, talc, or other minerals. In the laboratory, forensic scientists use several different techniques to characterize these particles and compare them with those obtained from other condom brands.
Lubricants: Sexual assailants prefer lubricated condoms, probably for the same reason they use petroleum jelly-that is, to help facilitate their crimes. Many condom brands contain a liquid lubricant, which may be classified as either "wet" or "dry." Both types of condom lubricant have an oillike consistency, but wet lubricants are water-based and/or water-soluble, whereas dry lubricants are not. Although many different manufacturers use the same dry lubricant, the viscosity grades sometimes differ. The forensic laboratory can recover these silicone oils easily from items of evidence and possibly associate them with a condom manufacturer. Wet lubricants may contain either polyethylene glycol or a gel made from a combination of ingredients similar to those found in vaginal lubricants. Forensic examination can associate specific formulations with particular condom brands, despite their similarities to other products on the market.
Spermicide: Both wet and dry lubricated condoms may also contain the spermicide nonoxynol-9. Its recovery and detection along with lubricant ingredients in particular can help show condom use and indicate the specific brand.