On an average, every month about 50 police stations are checked by the Vigilance Branch teams on various parameters of public satisfaction. From September 2014 onwards (up to June-2015), so far 480 surprise checks of police stations have been made.The parameters chosen for these surprise cheeks include response of policemen to complainants regarding registered FIRs, and those in rape, molestation, kidnapping and missing cases. Other parameters include behaviour with complainants visiting police station to lodge their complaints and promptness in registration and investigation of cases of motor vehicle theft. Investigation of kidnapping and POCSO Act cases are also in the parameter on which Delhi Police cops are judged during these surprise check up, he said.