How to become a contract security guard?

There are no formal education qualifications to become a contract security guard, although many people in this type of role have experience in the military or law enforcement. There are relevant training courses available, but licensure and certification standards differ by state. You need to be at least 21 years old and complete specialized training in firearm handling and safety if you carry a gun on the job. Additional qualifications include attention to detail, excellent communication skills, and physical stamina. As a freelance or independent security guard, you protect and patrol a residential, commercial, or private building.