The Secret Service's 2010 Guide for Spotting Concealed Weapons
The U.S. Secret Service released a report in 2010 titled "Characteristics of the Armed Individual." The report is a combination of amusing tidbits and useful information-some tips are both-to help law enforcement personnel determine if a person is carrying a concealed weapon. "Macho feeling" is one of the listed "Body Movements" to look out for, for example.
The first thing you want to do is determine if the suspect is right or left handed by watching how they perform certain actions, such as writing or lighting a cigarette. The report says that many perpetrators will periodically touch or adjust their weapon, both consciously and subconsciously, giving themselves away.
The majority of Americans, about 88 percent, are right handed, so it might be a good idea to keep an eye on the right side of a suspect first-and check their waist band.
https://www.yahoo.com/autos/secret-services-2010-guide-spotting-17024076...