This argument assumes that the police forces deterring crime in communities have sufficient manpower and resources to do that job. Not all police departments do, which means the role of the police changes since they have to do their in different ways. That’s why using crime-stopping as a broad police policy exists. Deterring crime as a policy may be effective, but it’s just not feasible in most places. Therefore, the police have a different true role. Deterrence may be one facet of it, but the police can only keep communities safe by doing much more than patrolling the streets as deterrent.