But first of all, do you have a security guard license issued from your state?
Here's how and where:
How to Get Security Guard License in Massachusetts
Most States require that guards be licensed. To be licensed as a guard, individuals must usually be at least 18 years old, pass a background check, and complete classroom training in such subjects as property rights, emergency procedures, and detention of suspected criminals. Drug testing often is required, and may be random and ongoing.