Common Types of Evidence

As a general rule, collect all probative evidence that may help to solve and prosecute the crime.

Be on the lookout for these most common types of forensic evidence:

Fragile or Transient Evidence

-  Hairs, fibers, glass, fractured objects

-  Shoe and tire impressions

-  Bare foot impressions (latent)

-  Bare foot impressions (in blood)

-  Fire accelerants (point of origin)

-  Body fluids (blood, semen, saliva)

-  Skin cells (items touched or worn)

-  Latent fingerprints

-  Gunshot residue and patterns

Solid or Tangible Evidence

-  Toolmarks (focus on point of entry)

-  Firearms

-  Other weapons (knives, clubs, etc.)

-  Fired bullets

-  Fired cartridge cases

-  Unfired cartridges

-  Drugs and paraphernalia

-  Documents (checks, notes, receipts)

-  Computers and devices