In the wake of the national media attention his office has received over hundreds of botched sex-crime investigations, Maricopa County Sheriff Joe Arpaio has made no secret that there are "other local agencies" who absolutely suck at investigating sex crimes, too.

The sheriff hasn't named names, but we're stunned to find out he's right...kinda.

The Phoenix Police Department has run into its own issues when it comes to mishandled sex-crime investigations -- and its botched cases exclusively involve children.

Because the mishandled cases don't involve America's self-proclaimed "toughest sheriff," the Phoenix P.D.'s blunders didn't receive national media attention -- and only garnered a small amount of publicity here in the Valley.

Phoenix Sergeant Trent Crump tells New Times that the department is in the process of reviewing more than 2,500 child sex-crime cases that had many of the same problems -- lack of supplements, lack of followup investigations, etc. -- as the MCSO's botched cases.