�I will never accuse anybody on an unsubstantiated allegation and I hope that other political leaders will also do the same�and that they will call their followers to order when they make these unsubstantiated allegations. If you are a responsible leader, if you are a responsible political party, if you think someday has indulged in corruption there are the appropriate institutions that you can go to and have those allegations investigated and culprits punished,� Prez John Mahama@ NDC Manifesto launch in Ho.