PHOENIX (KSAZ) - By now, many children are probably back home after a night of trick-or-treating, but law enforcement officers are busy making sure everyone stays safe.
U.S. Marshals are checking up on registered sex offenders around the valley.
Thousands of kids around the valley are out trick or treating, showing off their costumes and cashing in on candy.
While these kids are having fun, the U.S. Marshals service is making sure they stay safe and it's all part of Operation Safe Treat.
Six teams of probation officers and U.S. Marshals went around the valley, knocking on the doors of high risk sex offenders. Each team checked on at least 15 offenders.
"To make sure these offenders know that we're out checking on them and that we're making sure they're compliant and doing what they're supposed to do," said Christopher Kruse of the U.S. Marshals service.
Kruse says sex offenders have strict guidelines when it comes to Halloween activities.
"Individuals that are on probation have been told that they can't have their doors open to their house, their lights on, they can't be answering their door, they can't be contacting children and things like that. So we're going to go out and ensure that that's taking place and they're following the rules."
The U.S. Marshals service has been working on enforcement, looking for fugitive sex offenders and child predators with outstanding warrants. 73 arrests were made this month and 84 warrants were cleared up during that time.