Serbia Rents Out Police Force It's not unusual for police in this country to quietly moonlight as private guards, to augment their salaries. Serbia is now doing it officially. This month it began offering police-for-rent, along with police horses, police dogs, patrol cars and helicopters. A policeman goes for $4.50 an hour. A trained dog: $28 a day. Serbia says both its police and the police force need the cash.