The chief defence witness in the Kevin Lynch retrial says he will be dismissed because he made improper suggestions about the ex-police commissioner's ties to the IRA during cross-examination.Kevin O'Connell from the PSNI said on Thursday morning he had been asked to make the controversial remarks by an interrogator.He said he could not recall the name of the police official who authorised the instruction, but he said the person was senior enough in rank to be aware of what was being said.Mr O'Connell had previously been given permission by the trial judge to cross-ex