Pro: Private security forces can provide more intensive protection of an individual or company, because they can commit more time and more personnel and offer undivided attention to a given assignment.
Pro: Public police forces lack adequate personnel, because the taxpayers do not provide enough financial support.
Con: Private security forces are more likely to misuse their powers, because they do not have the strict supervision required of the public police forces.
Reply: Private security forces ought to be regulated by strict laws. When they are, they are unlikely to misuse their powers.
Con: Private security forces may not be trained as well as the public police forces.
Reply: The training of private security forces ought to be regulated by strict laws. Then the forces that are properly trained are likely to perform their duties well.