Desotoâs Peace Officer Memorial Service Brings Community Together May 12, 2021 DeSoto Mayor Rachel Proctor reads a proclamation Wednesday morning at the DeSoto Police Station for Police Week, May 9 to 15 and Peace Officer Memorial Day on May 15 Photo Credit Rita Cook Share via: DeSoto Honors Fallen Peace Officers With Memorial Service DESOTO â The City of DeSoto Police Department held its Peace Officer Memorial Service Wednesday morning at the departmentâs flag poles in front of the building. As the rain ceased to allow for the short ceremony, DeSoto Police Chief Joe Costa opened the ceremony with a brief statement about the importance of Police Week. The week runs May 9-15.