Tustin police officers were recently dispatched to a call for a stolen bag of chips from a convenience store’s outdoor chip stand. The chip thief turned out to be a wanted parolee and violent sex offender who had cut off his GPS ankle bracelet. What could have easily turned into a dangerous altercation ended peacefully, thanks to thorough training and de-escalation techniques used by the Tustin officers. “Our police department prides itself on dealing with little problems before they become big problems,” one officer said. “Because we deal with the little problems seriously, we ended up finding a violent sex…