A police source tells TMZ that Richie Sambora's 10-year-old daughter, Ava, was in the car with him when he was busted for DUI Tuesday night.
Ava's mom is Heather Locklear.
Sambora was pulled over at 11:00 PM last night. Cops say they observed him driving erratically in a black Hummer and pulled him over. He failed numerous field sobriety tests and was detained for DUI.