From S&W's website:
New Hampshire Division of State Police and Highway Patrol and the Hartford, Connecticut Police Department both will carry M&P45s.
"While among the first agencies to place an order for the M&P45, Hartford Police Department joins a growing list of police agencies that have selected firearms from the M&P Series for duty use. Recent additions include the Iowa State Patrol; Harris County Sheriff's Office in Texas; Charles County Police Department in Maryland; New Castle Police Department in Delaware; Berkeley Police Department in California; Kenner Police Department in Louisiana; Rocky Mount Police Department in North Carolina; Brookline Police Department in Massachusetts; Hampden County Sheriff's Office in Massachusetts; and the Jefferson County Sheriff's Office in Wisconsin."
"Columbus, Ohio Police Department and the Dallas/Fort Worth International Airport Police (DFW) with the company's advanced-design polymer pistol, the M&P40. The agreements call for 1,875 M&P40 pistols to be shipped to the Columbus Police Department and 305 M&P40 pistols to be shipped for use by DFW Airport police officers."
"Smith & Wesson Holding Corporation (Amex: SWB), parent company of Smith & Wesson Corp., the legendary 154-year old global provider of products and services for safety, security, protection and sport, today announced that it has reached an agreement with the North Carolina Department of Correction for 5,700 of the company's new Military & Police (M&P) Series of advanced-design polymer pistols."
"Smith & Wesson Holding Corporation (Amex: SWB), parent company of Smith & Wesson Corp., the legendary 154-year old global provider of products and services for safety, security, protection and sport, today announced that it has secured an order from the Cincinnati Police Department for 1,100 of the Company's new M&P9 pistols."
"Smith & Wesson Holding Corporation (Amex: SWB), parent company of Smith & Wesson Corp., the legendary 153-year old global provider of products and services for safety, security, protection and sport, today announced it has filled an order from the Patrick County, Virginia Sheriff's Department, for the Company's new Military & Police (M&P) Series of advanced-design polymer pistols."