A version of this article appears in print on July 14, 2025, Section A, Page 13 of the New York edition with the headline: N.Y.P.D.’s Ex-Chief Had Tracking Devices Removed From His Vehicles.

NYPD officers in disgraced ex-Chief of Department Jeffrey Maddrey’s office have been "difficult to track" because they dismantled the GPS tracking devices on their unmarked department vehicles ...