Botswana should decriminalise homosexuality and prostitution to prevent the spread of HIV, ex-President Festus Mogae has told the BBC. Mogae, who heads the Botswana government-backed Aids Council, said it was difficult to promote safe sex when the two practices were illegal. A government spokesman on HIV/Aids told the BBC homosexuality and prostitution would remain illlegal until the government concluded wide-ranging consultations to see whether there was a need to change the law.