Bruce Jenner -- Cops Hunt Down Renegade Paparazzi

L.A. County Sheriff's deputies paid a visit to Bruce Jenner's Malibu house Tuesday ... then went on the hunt for the paparazzi who have been perched on a nearby hillside and taking aim with telephoto lenses.

It's illegal for photogs to use telephoto lenses to invade the private spaces of the people they're shooting.

The photographers took pics of Jenner earlier in the day that were being peddled around town. They've also taken pics over the last week from the same perch and Bruce has confronted them. He said he would call the cops if they came back. Tuesday Bruce made good on his promise.