For the past three days, 65 officers from across Madison County participated in "Operation Madison County Spring Cleaning."
The effort verified that 400 of the county's registered sex offenders were compliant with local and state sexual offender laws.
"What we're doing is preventative maintenance. We're going to these houses and we're verifying that this is where they say they live, this is where they have registered for where they're supposed to live," said Madison County Sheriff's Office Investigator Brent Patterson.
As Detective Marcus Adams of the Madison Police Department quickly found out on his rounds, the offenders aren't always following the rules.
"First one we checked on our sex offender compliance check has given a false address," said Adams. "He does not live here. He only uses the address and that's false, so we're going to be obtaining warrants for his arrest for not being in compliance."
Throughout the three-day round-up, the multiple agencies involved made 15 arrests for violations and approximately 27 warrants were obtained.
"We're going to protect our citizens, we're going to protect our children to make sure that if you're not there, we're going to find you and make sure that you're arrested for that violation," said Patterson.
In addition the Madison County Sheriff's Office and the Madison Police Department, the Huntsville Police Department and three other offices helped with the annual operation.