Storage alarm activation at McCarthy Middle School Heard on: Chelmsford Police and Fire 00:23 00:00 250 North Road at McCarthy Middle School for the door 18 storage alarm motion. 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. 00:00 250 North Road at McCarthy Middle School for the door 18 storage alarm motion. 00:06 Alarm company did say they got a disarm, but just wanted to verify. 00:14 Yep, hold me off. 00:16 Three. 00:21 Hi, Chelmsford. 00:22 You can show me off as well. 2026-11-11 23:27 UTC Break-In North Rd, Chelmsford, MA 01824 View on map