Turkish prosecutors have imposed a travel ban on pop singer and songwriter Mabel Matiz as part of an obscenity investigation into one of his songs, the Bianet news website reported, citing his lawyer. Matiz, who gave a statement at the İstanbul courthouse on Monday, was released under judicial supervision but barred from leaving the country. On Monday Matiz was questioned at the cybercrimes bureau under police escort but did not make a public statement afterward. He argued that the case amounted to a violation of personal freedom and undermined public trust in the judiciary. “I want to believe that public order and our collective well-being are not so fragile as to be disrupted by a mere song,” he wrote.