This young museum (founded in 1993) is run entirely by volunteer staff, many of whom are family members of police officers, past and present. They love having visitors to the museum and will gladly take you on a tour of the museum exhibits and enthusiastically share all they know about the history of law enforcement in Phoenix. And there's plenty to see here, from Phoenix's first "jail" (a big rock with shackles) and an arrest ledger from the 1800s to a 1919 Ford Model T police car and a 9/11 exhibit featuring a piece of steel from the Twin Towers. Visitors can also learn all about late Valley resident Ernesto Miranda, after whom Miranda rights are named, and pay tribute to fallen officers killed in the line of duty (the first was officer Haze Burch, shot and killed by fugitives in 1925). Best of all, the museum is free (but donations are needed and appreciated).