Claims that a man high on ice was unarmed when gunned down by police during a dramatic shootout in a Docklands car park were "preposterous and utterly implausible", a court has heard. Joseph Christiansz had told a Supreme Court jury he tossed away his loaded revolver and was running towards a stolen car to try to escape from police when he was shot three times, and hospitalised in an induced coma for several days. But Crown prosecutor Ray Gibson claimed Mr Christiansz had pointed the gun at four police officers before he was shot. Mr Christiansz, 37, has pleaded not guilty to one count of using a firearm to prevent arrest, and four counts of assault. He had also been charged with attempted murder but Justice Betty King ordered this charge be dropped because of insufficient evidence. Four police officers - Sergeant Sean Raab, Detective Senior Constable Simeon Parker, Detective Senior Constable Warren Normoyle and Senior Constable Sarah Rogers - had set up a surveillance operation on level two of the Victoria Point Docklands apartment complex where two luxury cars stolen by Mr Christiansz were parked on November 12, 2012. The officers saw Mr Christiansz get out of the lift from his rented 40th floor penthouse suite just after 3pm and walk into the car park. In his closing address to the jury, Mr Gibson said Mr Christiansz was high on the drug ice and had $5000 cash in his back pocket when confronted by Sergeant Raab, who told him, "Police, mate. We need to have a chat." "Clearly, at that point, the game is up [for Mr Christiansz]," Mr Gibson said. "His world, with his drugs in the apartment, the drugs on him, his expensive apartment that he is renting, his world is about to collapse, about to cave in at that point. "So added to all that, he's high on ice and he's got a loaded gun in his pants. This really, from his point of view, is a perfect storm. Is it any wonder he then behaves the way that he did?" Mr Gibson said Sergeant Raab claimed Mr Christiansz stepped back at an angle and started yelling, "No, no, no." The prosecutor said Mr Christiansz grabbed the gun from the front of his jeans and pointed it at Sergeant Raab's head when he was only two metres away. Sergeant Raab thought Mr Christiansz was reaching for his keys and was taken by surprise. "He aims the gun at the head of Sergeant Raab," Mr Gibson said. "Sergeant Raab sees the gun jerk at least twice at a distance of about two centimetres to the right and then he immediately tries to take cover. "[Sergeant Raab] turns ... ducking his head, thinking that it was better if he got shot in the back than in the head." Mr Gibson said Mr Christiansz started running towards one of the stolen cars, and pointed the gun at the other two officers before Constable Parker opened fire. "Initially I fired one shot," Constable Parker told the jury. "It didn't appear to have any affect. He turned around. He didn't fall down or anything that I expected to occur. I assumed I missed him and he turned around and then he ran ... towards me on a slight angle. "The firearm was then pointed at either myself or Sarah. It was pointed in our direction. He came closer, I fired again. It appeared to have no effect and I fired again and the fourth time I fired by then he was within a very short distance of me ... "He appeared to run into the side of the [stolen car] there and then fell to the ground. "I approached him with my gun out yelling, 'Where's the firearm? Show me your hands, don't move'." Mr Christiansz denied pointing his gun at Sergeant Raab or any other officer. The trial continues.