My department, Columbus P.D., did a test and evaluation on several pistols in 2006 to replace the aging S&W 4506s that we were issued in 1990. They decided on the S&W M&P in 40 S&W. The main reason this pistol was chosen over the Glock 22 .40 S&W was the fear of negligent discharges when pulling the Glock's trigger to disassemble for cleaning. The M&P feels as good in my hand as any pistol I've ever held, I just don't trust it. Sometimes it wouldn't lock open on an empty magazine. sometimes it would slam closed when a full mag was inserted. Minor stuff? Maybe, but I like my firearms to work like they're supposed to. Because I was assigned to a covert unit, I was allowed to carry my Glock 27, or my department owned covert gun, a Gen 2 Glock 23. Later this year, I hear that CPD will transition to the S&W M&P in 9mm. The reason? Easier to handle for "Smaller framed officers" I'm pretty sure they mean women. I have total faith in my Glock pistols to perform as advertised!
Ron