Hennepin County law enforcement officers are going door-to-door to clear about 200 warrants involving sex crimes against children.

The sheriff's office teamed up with 20 other agencies Thursday to kick off the warrant sweep, which will continue into next week.

Authorities in Hennepin County perform one warrant sweep each winter and one each summer, said Jennifer Johnson, a spokeswoman for the Hennepin County Sheriff's Office, who rode along with officers Thursday.

Authorities are focusing on crimes like solicitation of a minor and child pornography, she said, but they also have warrants on hand for crimes like felony assault. Past sweeps have focused on drug-related and drunken driving warrants, Johnson said.

The officers Johnson rode along with sometimes had two unrelated warrants for people reported to be living in the same apartment building or house.

The fugitives can be hard to find, as a team of officers working in north Minneapolis experienced. The team, accompanied by a Star Tribune photographer, only made one arrest Thursday morning despite going to eight residences.

Johnson didn't know how many arrests had been made Thursday morning, but said numbers would be available at a later date.

Staff photographer Jerry Holt contributed to this report.

Anne Millerbernd is a University of Minnesota student on assignment for the Star Tribune

Anne Millerbernd • 651-308-7126