Greenwood police said sex crimes associated with major sporting events are beginning to become more prevalent in central Indiana suburbs as the celebration surrounding the Super Bowl draws near.In the past week, officers made three prostitution arrests in Johnson County and authorities said they expect to make more as Super Bowl traffic ramps up. Special Section: Super Bowl Greenwood Police Officer Matthew Fillenwarth said prostitution is usually seen in larger cities, but said offenders are moving their operations to the suburbs."Prostitution used to be just an inner-city thing," Fillenwarth said. We were all briefed last year in reference to the sex trade that follows the Super Bowl and to expect an increase in this type of activity.Investigators said many prostitutes advertised their services on the classified website backpage.com, RTV6's Chance Walser reported.Undercover officers said they used the information they gathered online to set up a sting operation at the Red Roof Inn and In Town Suites in Greenwood, netting three arrests.Greenwood resident Brigit Bogard said she wants her neighborhood to remain a safe place for her children."I have two small kids that go to school here in town and to know that prostitution like that is happening because of the Super Bowl makes Greenwood not feel as safe, Bogard said.Police said they dont believe any of the people arrested were licensed to escort and code enforcement officials said no permits were issued for legitimate escort services.