Authorities are looking for a sex offender who faces charges of failure to register as a sex offender on a second offense. Captain Michael Hanken, of the Marshalltown Police Department, says 31-year old Dustin Ray Moore is a bald, bearded white male who stands five foot 11 and weighs 172 pounds. He has a lot of tattoos. He was originally charged in Delaware County in 2004. Any information, contact police dispatch at 641-754-5725.