That is a great point. I have a liability insurance policy in my line of work. I have to prove my ongoing training, certify where I work and attest to any legal actions against me (though legal action and arrest records for me would be public and searchable). I would add that since this killer's record of complaints were always dismissed he would not have had to declare them to an insuring/bonding agency. Therefore, reform needs to happen in the complaint system with more transparency in order for the bond idea you had to work. He may have been cleared from a department perspective but if the complaints were ongoing, a bonding agent would need to have access to the complaint, the investigation and the outcome in order to refuse to bond him. Also, that wouldn't stop other bonding companies from taking him on.