 Such claims are often devoid of verifiable data but typically get treated as factual by the mass media, politicians, pundits, and activists—and government policies and expenditures regarding trafficking are often based on these highly dubious claims.As an alternative, Weitzer advocates that policies and legislation be based strictly on solid evidence.Weitzer has done research on police-minority relations in Israel, Northern Ireland, South Africa, and the United States, including studies of racial profiling and police misconduct and racially biased policing.