Possession of an instrument of crime is a criminal charge governed primarily by state laws, which vary by state. Such a charge is typically brought in cases involving drugs or weapons. The following is an example of a state law dealing with possession of an instrument of crime:
§ 907. Possessing an Instrument of Crime
(c) Definitions.--As used in this section the following words and phrases shall have the meanings given to them in this subsection:
"Instrument of crime."
Anything readily capable of lethal use and possessed under circumstances not manifestly appropriate for lawful uses which it may have. The term includes a firearm which is not loaded or lacks a clip or other component to render it immediately operable, and components which can readily be assembled into a weapon.