just brakes sells parts on cars that are not needed arvada, Colorado

i know someone that is an ase master certified auto technician with over 25 years experince, and just recently worked at Just Brakes for a short amount of time because of conflict of intrest  involving the practice of selling parts that are not needed ,and they said that no matter what brake problem a car came in for they automaticlly sell,pads,rotors,and calipers. that means every car. There are no test drives or any diagnostics done before service. They do not follow ase standards or technicial service bullitens that may be revised or updated. Something  must be done abut this problem.