On Wednesday, August 28th between 8:00 pm and Midnight the Chelsea Police Department will be conducting ShotSpotter calibration tests in the area of the Garden Cemetery and Parkway Commons (the former Parkway Plaza Shopping Center). The noise inconvenience is expected to be at a minimum. Police personnel will be at the scene of these controlled live-fire exercises. Rounds from different caliber firearms will be safely fired into a secure container to test the accuracy and reliability of the ShotSpotter sensors in the area. Revere and Everett will also be conducting similar tests the same evening.