Bill and Ben have been arrested and are being held in custody. They were found fighting after a failed burglary, but the police have a problem. There is no real evidence against either Bill or Ben that they were involved in the attempted burglary. It is entirely circumstantial that they were close to the scene when fighting, although it is probable that the failure to effect the robbery caused them to fight.
So the police concoct a "cunning plan".
They offer both Bill and Ben the following plea bargain: If you testify that your accomplice was involved in the burglary and he remains silent, you will go free and he will go to prison for ten years; if you both remain silent, you will both go to jail for one year for fighting; if you both testify, you will both be incarcerated for five years.
Bill and Ben have no way to communicate, and so no way to agree a plan.
What should they do?
Answer at 9.00 on Monday