hot dog system
n.— «While still fighting with Jones, Goodnow said he reached for a device on his belt commonly called the “hot dog system.” It’s a remote control that can release a K-9 from the back of a cruiser with the push of a button.» —“Manchester Police K-9 Helps Stop Suspect” WMUR-TV (Manchester, New Hampshire) Mar. 14, 2007. (source: Double-Tongued Dictionary)