Alibi

1. Select a scene and time for a crime say, a bank robbery, at a well-known bank in the middle of town, at 11 o'clock yesterday.
2. Two students are the 'suspects' - they are sent outside and instructed to prepare an 'alibi' for one another. This means they have to invent and be prepared to describe a situation during the period of the crime.
3. The rest of the class in groups prepares 10 questions to confuse the 'suspects'.
4. Then 'suspects' come to different groups to prove their alibi, the class tries to catch them in lie.