Mum denies police shooting victim 'lunged'

The mother of a man shot dead by police on the Gold Coast says her son was "rampant" and "psychotic" at the time, but denies he lunged at officers with a knife.

She has also questioned the need for lethal force.

Troy Foster, 32, became the third person to be fatally shot by police in Queensland in a week, after officers were called to a Southport home on Monday evening.

His mother Rhonda says she called triple zero because he had been drinking and threatening her.

"He hit me with a bottle, threatened me with a knife," she told Channel Seven.

Police have said the two experienced officers who attended the property had no choice but to shoot after a man came at them with a knife.

"It was one step sideways," Rhonda said.

"He didn't run anywhere, he didn't do anything."

She recalled the moment she heard six shots before her son fell to the ground and died.

"Why didn't you let the dogs out, why did you not shoot him elsewhere, why was it so quick to kill?" she said.

Channel Seven has reported that Mr Foster had been taken to the Gold Coast Hospital by police for a mental health assessment on Sunday night.

Police Commissioner Ian Stewart has announced an immediate review of training and other policies.

On Tuesday, he met Queensland's Mental Health Commissioner Dr Lesley van Schoubroeck, who praised the review as a step in the right direction.

But she warned no conclusions could be drawn from the six police shootings across Queensland this year because they were subject to coronial investigations.

Four of the shootings have been fatal.

Mr Foster's mother joined the call for changes to police policy.

"I just want them to change a few things in the system so nobody else goes through what me and other families are going through," she said.