Hi:
In 1962 when I entered Law Enforcement three Agencies that was held in high esteem was the FBI, U.S. Border Patrol, and LAPD. Most Agencies accepted their opinions of weapons, equipment, and training. In that era the FBI had training school for Police Department in different regions. I was sent to one such school in my region. I showed up with a Colt .38 Revolver and a cross draw holster. WOW, I received instant schooling in cross draw holsters are a "NO, NO" and Smith and Wesson Revolvers are a better choice as a sidearm. After the school I went to a Smith and Wesson Revolver in a Jordan style border Patrol holster.