Police admit to errors over Craig Thomson arrest CRAIG Thomson's lawyer, Chris McArdle, has claimed a victory for his client in his PR war with police, after a senior NSW officer admitted he had made errors in his statements about the MP's arrest. Detective Superintendent Col Dyson, one of the state's most senior and respected officers, had told journalists on Thursday after he arrested Mr Thomson that the MP had been offered the chance to "surrender" to Victorian police in Melbourne.