Warwick made gun gesture, says lawyer

Harry Cormack said he was acting for Andrea Blanchard in 1983 in the Parramatta Family Court in her case against her estranged husband Leonard John Warwick.

Warwick later approached him twice, describing Ms Blanchard as "a lump of wood" and "a bitch", before Mr Cormack got into his car.

He was giving evidence at the trial of 71-year-old Warwick, who has pleaded not guilty to four murders, including the shooting deaths of his brother-in-law and a judge, and 20 other offences relating to seven events that occurred between February 1980 and July 1985.

Mr Cormack testified that as he was driving out of the car park he saw Warwick appeared to be writing something down as he looked at the vehicle.

"I was concerned," he said in the NSW Supreme Court on Tuesday.

"I thought he may have been writing down my number plate."

Mr Cormack said he drove to a nearby phone box and rang his office, telling them about the incident and asking them to record it.

He then noticed a car coming down the street was being driven by Warwick, who appeared to recognise the lawyer as he drove up to the phone box.

"He put his hand into the shape of a gun and gesticulated to me in what I regarded as a threatening manner," he said.

When he demonstrated the gesture to the court, Justice Peter Garling described it as raising a clenched fist, holding out the index figure like the shape of a pistol.

But Warwick's lawyer said it what like someone pointing at someone.

Mr Cormack said he temporarily acted for Ms Blanchard, when her usual solicitor Garry Watts was overseas.

He stayed in Mr Watts' Northmead house and drove his car.

The trial has heard that Mr Watts sold the house in 1984 but his name was still listed at that address in the phone book in February 1985, when the new resident found a bomb under his bonnet.

One of the charges Warwick denies is placing the explosive in the car with intent to commit murder.

The trial is continuing.

Australian Associated Press