Who decides?

In regard to a situation in which a speeder will not stop at the request of the police, police officers are allowed to use an amount of force in proportion to the offense, according to The Christian Science Monitor. However, who decides what the right amount of force is in any given situation? People are subject to differing opinions, as is the case for a 19-year-old quadriplegic who received his injuries after a high speed chase ended in a collision instigated by police trying to stop him. Police say that the suspect posed a threat to other motorists and pedestrians alike as he swerved into the wrong lane and traveled at excessive speeds.
The teen claims that police used unnecessary actions to pull him over and that his crime, simply running, did not call for so much force. The hole in this logic is that police had no other way of stopping the offender. The job of the police is to protect and defend the community from harm. They do not give chase to offending motorists because it is an enjoyable activity; quite the contrary, police officers run the risk of being injured trying to pull over run-away cars. As the authorities put in place by our government to uphold peace and justice, in cases such as the one argued by the injured teenager, police officers should be given the benefit of the doubt. According to the National Highway Traffic Safety Administration, “…one of the most effective tools in a law enforcement agency is the alert patrol officer.”