Asked by Nicholas Hilliard QC, counsel to the inquest, "Did you hear him saying anything to Mr de Menezes?" Mr Livock said: "Absolutely not."
Mr Livock earlier said that at first he had thought that the group of plain-clothes officers, who were wielding guns when they ran on to the Tube at Stockwell, might be "a group of lads who were just having a laugh".
He said that he and his girlfriend, Rachel Wilson, who was with him, only realised something more serious was taking place when Mr de Menezes was shot dead at point blank range. "One of my initial thoughts was it was all a game and they were a group of lads who were just having a laugh - a very bad taste laugh but just having a game on the Tube, because they were just dressed in jeans and t-shirts but with firearms," Mr Livock said.
Mr Hilliard asked: "Had you heard anything said about police?"
Mr Livock replied: "No, certainly not. And I remember that specifically because one of the conversations that Rachel and I had afterwards was that we had no idea whether these were police, whether they were terrorists, whether they were somebody else. We just had no idea."
He is also, as his testimony implies, not the sharpest tool in the shed.