In order to become a police officer, a person must be at least 21 years old, they must have a clean background, be a United States citizen, and they must have a high school diploma or equivalency. Get information on the physical and intellectual requirements for police officers with help from a police officer in this free video on police jobs and law enforcement. Expert: Beau Babka Bio: Beau Babka is a police officer at the Cottonwood Heights Police Department. Filmmaker: Michael Burton