CHICAGO -- You might call it a stupid human trick after a Tinley Park father and son were charged with theft after the father's cell phone accidentally dialed 911 as the two allegedly plotted their next heist, police said.

Michael Bolda Sr., 40, of 7114 Olde Gatehouse Road, was charged with one count of theft from Murray's Discount Auto Store in Oak Forest and another count of theft from Auto Zone in Orland Park, police said. His son Michael Bolda Jr., 20, of Chicago, was charged with one count of theft from Murray's, police said.

A muffled cell phone call to the Tinley Park police communication center was received at about 7:20 p.m. Friday during which a male caller described past and future retail thefts at area stores, police said. Police were not able to pinpoint the location of the phone until the muffled caller gave his callback number to a third party, leading officers to Michael Bolda Sr.'s Tinley Park address.



Police said that with the consent of Michael Bolda Sr.'s mother, they searched the residence and discovered new electronic equipment still in original packaging, including a car stereo harness and wiring kit, walkie-talkies, mood lights, speakers and a recording compact disc player.

The cell phone, with the Tinley Park dispatcher still on the line, also was found in the home, police said.