Metro

Hidden cell phone may have been used to track slain slumlord: cops

Cops have found a cell phone attached to the bottom of slain Brooklyn slumlord Menachem “Max” Stark’s car — and believe that it might have been used to track the victim’s movements ahead of his deadly abduction, The Post has learned.

The hidden phone was discovered after the NYPD took Stark’s car Friday to search for clues to his unsolved murder, a law-enforcement source said.

Cops are reviewing records to locate its owner, testing it for fingerprints and investigating further, the source said.

Stark, 39, was violently kidnapped as he left his Williamsburg office during a blizzard late on the night of Jan. 2, and his burned body was found the next day in a garbage dumpster in Great Neck, Long Island.

Law-enforcement sources have said that Stark — who ran rental properties riddled with violations, owed millions in debts and dabbled as a loan shark — may have been targeted for a professional hit by an unpaid creditor.

Based on surveillance video and witness statements, cops believe he may have been stalked for up to two weeks before being grabbed and killed.