"We have offered to take this step forward and co-operate with the Indians. I am willing to have my security adviser and their security in charge have a joint committee, which we have proposed to the Indians for a joint investigation in the Mumbai incident," he added. Asked if Pakistan would turn terrorists over to India if it had the proof, Mr Zardari said: "If we had the proof, we would try them in our courts, we would try them in our land and we would sentence them."