Final answer:
According to the Police Notification Standard, in the case of foul play, you should preserve the scene to protect potential evidence.
Step-by-step explanation:
According to the Police Notification Standard, in the case of foul play, you should preserve the scene. This means that you should not disturb or move anything at the scene to ensure that all potential evidence is protected. By preserving the scene, law enforcement officials can thoroughly investigate and collect any necessary evidence, which is vital for solving the crime.