noun - a person who sees a crime or an accident happen and can describe what they saw
adjective - not working at the moment
noun - a person who talks to others to reach an agreement or to solve a problem
noun - is the act of asking someone (usually a suspect or witness) many questions to get information about a crime
adjective - having been taken by the police and not free to leave
adjective - working secretly, especially as a police officer trying to get information without people knowing who you really are
noun - the place where a crime happened and where the police look for clues and evidence
verb - to make someone familiar with a new place, situation, or system, or to find your position or direction in relation to your surroundings
noun, formal - the process of familiarizing someone with a new place, situation, or system, or the ability to understand your position or direction
noun, British English, informal - an embarrassing mistake, especially one made in public