KOFI ALIAS BUFFALO AND OTHERS  v. THE REPUBLIC Criminal law and procedure—No case to answer—Duty of trial judge—Duty of trial judge at close of case for prosecution—When he is not to call on accused—No evidence in support of conspiracy charge—Defence counsel announcing he will not make  submission of no case—Whether failure of trial judge to withdraw or directing jury to return not guilty verdict misdirection—Whether subsequent conviction to be quashed—Criminal Procedure Code 1960 (Act 30), s. 271.