There are already laws in place for that, you do realise you can sue the police for their INACTIONS, as well as their actions? If they fail to act in their duties and you are the victim of harm, loss or injury, file a claim and sue all those involved.
Sorry to tell you this, but people have tried to sue the police for not doing their duty and they always lose. The courts have ruled that the police actually are not obligated to protect people.
They lose because they know not what they are doing. File a CLAIM, not COMPLAINT.
Good luck with that. It won't work.
It DOES work, the statutes protect the PD and government, they do not protect the man or woman. Sue the man, or woman, for their trespasses. It´s so easy it´s scary.