London Mayor Dave Eades, left, congratulates Joseph Harris, following a swearing-in ceremony on Thursday. Harris, 22, is the city’s newest part-time police officer. The London native was commmissioned on April 1, 2013, then deployed to Afghanistan with the Army National Guard. Harris served nine months as a military police officer at Bagram Airfield. Since returning from Afghanistan in February, Harris has worked as an auxiliary officer with the London Police Department.