Commercial alarm at high school concession stand Heard on: Howard MD Law Dispatch Group Calls 00:11 00:00 Two M21 for a commercial alarm. Transcript This transcript is auto-generated from live dispatch audio and may be incomplete or inaccurate. It is not an official report and may change. 00:00 Two M21 for a commercial alarm. 00:04 M21 . It's at Glenelg High School. 00:07 It's coming from the concession stand. 00:10 It's a rear motion alarm. 7/24/2026 12:08 AM Break-In Burntwoods Rd, Glenelg, MD 21737 View on map