BOGOTA, Colombia — U.S. Drug Enforcement Administration officers in Colombia allegedly participated in sex parties with prostitutes paid for by local drug cartels and received money, gifts and weapons from the groups they were investigating, according to a report released Thursday by the Office of the Inspector General. Citing Colombian police officials, the report said there were allegations that at least nine DEA agents “solicited prostitutes and engaged in other serious misconduct while in the country.” The 131-page report looked at allegations of sexual misconduct and harassment from 2009-12 within the Department of Justice’s law-enforcement branches, including the FBI, the DEA, the Bureau of Alcohol, Tobacco, Firearms and Explosives, and the U.S.