There are lots of different kinds of handguns, lots of different calibers, and lots of police agencies. But it seems to me that the needs of many of the agencies are much more alike than different. I understand why Air Marshalls have a different need than others, but why would the Secret Service require a different handgun than the FBI or the Marshal Service? Are counterfeiters that different physiologically than other criminals? Why would detectives in one city require a different caliber then detectives in another? After all these years you’d think this puzzle would have been solved. Is it a matter of which manufacturer of guns and/or ammunition gives whatever agency/city the best deal? Do the agencies provide a selection handguns available for its agents to choose from. What’s the deal?