Get some adults together who are a ble and happy to play the suspects. Now once ensured that you have at least 5 adults you can start plannig who was murdered. You need to know where the body was found. The victims background e.g Has he/she ever been in prison. Why might people want to kill the victim. Write up a autopsy report. Once this has all been done make sure that the actors know there character inside out. They must have an aliby. Are they lying? You work it out! You might want to get a parent to do the plot because otherwise you will no it. Good luck Detectives. Maybe decorate the interview room aswell this can be great fun and is very original!