When an etching agent is applied to a metal surface in order to restore a removed serial number, the stamped area will dissolve at ________ the unstamped area.
The likelihood of detecting gunshot residue on swabs taken from living subjects more than six hours after a firing has occurred is ________ the likelihood of detecting gunshot residue within two hours of a firing.
Tools and tool marks are often found at burglary scenes and can be useful evidence. Proper evidence collection by the field investigator would include:
The "dermal nitrate test" has fallen into disfavor because of its lack of specificity. Which of the following common materials does NOT give a misleading positive reaction to this test?
Chokes are sometimes found on shotguns where they function to constrict the end of the barrel. The speed and distance traveled by pellets fired from a narrow choke is ________ the speed and distance traveled by pellets fired from a shotgun with a wide choke.