The Marana police posted a video to their Facebook page and ask their readers if they hear an unusual sound around the 19 second mark.
Below, the original post/text from the Marana Police Department on their Facebook page.
Marana Police Department
July 31 at 2:00am
Listen for the unusual anomaly that was recorded during this recent MPD radio transmission. Could it be a ghost? What do you hear it say? At the 19 sec mark, some people think it says "Stop talking to me." Our radio technician listened to it and could offer no explanation. He said it was not interference or picking up another frequency.
Do you recognize the sound and could it be a ghost that says "Stop talking to me."?