It means was tried before a court of law, to establish whether the defendant is guilty of a crime
To make someone's hair stand on end is to cause them to be very frightened, the expression is derived from getting goosebumps when scared and thus having your hair stand on end.
It's the past tense of the verb "to stand". "I stood outside your door for an hour waiting for you."
Madonna song
frozen with horror without moving or making a sound not in motion http://www.thefreedictionary.com/stock-still