I started in law enforcement in 1973, got my first Chief's job in Iowa in 1976, making $10,500 per year. I retired in 2019 with 46 years and 43 years as a Chief in Iowa, Wisconsin, Minnesota and Texas. I was 18 when I started, and could carry a handgun, but couldn't buy one, so my dad had to purchase my first duty gun, a Dan Wesson Model 15-2 in .357 with 4" and 6" barrels. Loved that revolver. I got into IPSC shooting, and in 1977, because I didn't have the money to keep it, I traded the Dan Wesson for a Colt Gold Cup .45 that I sent to California where it spent 6 months with gunsmith Chuck Ries getting modified. Carried that on duty for years, with a Detonics .45 in an ankle holster for backup. After 130,000 plus rounds on the Gold Cup, it developed a small crack in the frame so I had Les Baer build me a custom .45 Premier II Super-Tac with lots of features, and I carried that until I retired. I still have the Chuck Ries, love it, and still shoot it once in a while, even with the crack. Chuck did great triggers. I have and love the Les Baer as well, great gun. A number of years ago, I missed my Dan Wesson, so I purchased a full Pistol Pack 2-4-6-8. Dan Wesson's had a reputation for accuracy. The Pistol Pack was so nice, and original, that I didn't want to shoot it, so I bought another Dan Wesson 6" that was beautiful, but I could shoot it, and still do. Carried a variety of 9mm, .40's, and a small .45 for off-duty or when in plain clothes, but always go back to my Les Baer .45's as my favorite and go to. Still have the Satin Nickel Detonics too.
As a post script, I worked in a rural county in Iowa in my first Chief's job. We had a deputy, primarily working nights, that carried a S&W Model 29 .44 magnum, 6" barrel. It was hard not to notice it. He later became a writer, and put out several novels about law enforcement in rural Iowa. The books were great, and if you are interested in a good read, look up Donald Harstad. I believe he wrote 7 of them.