Firearm and Tool Marks Crossword

The_____ is the orginial part of the bore left after rifling grooves are formed.
The diameter of the gun barrel is known as its______.
The________characteristics of a rifled barrel are formed by striations impressed into the barrel's surface.
The most important instrument for comparing bullets is___________.
A shotgun has an ___________barrel.
A___________photograph may help visualize gun powder deposits around a target
Current methods for identfiying a shooter rely on the detection of ________ residues on the hands.
Shoe and tire marks impressed inot soft earth at a crime scene are best preserved by______________________ and ______________.
A(n)______ is any impression caused by a tool coming into contact with another object.
The clothing of the victime of a shooting must be handled so as to prevent disruption of _____________ around bullet holes.