Bellevue, WI (WTAQ) - The Brown County Sheriff's Office plays host to a weekend undercover operation, where a team made up of officers from several northeast Wisconsin police agencies spend their time nabbing people looking have sex with young children. It's called "Operation Vangard"... The idea is to engage predators online, arrange meetings and make arrests. Lt Jim Valley, with the Brown County Sheriff's Office, leads the team. The campaign leads to 6 arrests in Brown County. But Valley says the numbers aren't important to him. Getting predators off the street is.