WATERLOO, Iowa (AP) – The city of Waterloo is being sued for adopting a measure banning the city and many businesses from asking about applicants’ criminal records in early stages of the hiring process. The City Council approved the so-called “ban-the-box” ordinance this past fall. It doesn’t let employers ask about an applicant’s criminal history until after making a conditional job offer. The lawsuit was filed Thursday in Black Hawk County. Mayor Quentin Hart told station KWWL that he and the council wouldn’t comment on the litigation. The lawsuit was filed by the Iowa Association of Business and Industry.