It's a simplified version of "Cluedo" board game to practise past simple and past continuous. The teacher sets the scene of the murder case and divides the students in groups. One group takes the role of the detective, they are given the question prompts and have to "interrogate" the suspects asking the questions using past. The other groups are given the roles of the suspects and are randomly given the "You are guilty/ You are NOT guilty" slips of papers. Then they have to come up with plausible answers to the detectives' questions except for the guilty suspect who has to make a mistake in his alibi report. The detectives try to find the murderer. My students had a great time playing the game and practising the tenses at the same time. Have fun!