Victim refuses to talk over bikie-linked shooting.
Yesterday, police released images of the man they believe may be able to assist them with inquiries into Saturday's double shooting at the Robina Town shopping centre.
A female bystander was shot when a man with bikie links opened fire on another man at the shopping centre.
It followed a series of violent attacks last week also linked to bikie gxxgs.
Assistant Police Commissioner Graham Rynders says the injured man is refusing to talk to detectives who have yet to establish a motive for the shooting.
We're not sure why he was shot or we are not even sure why it took place in that location," he said.
"It may have been been an opportunistic shooting - we don't know at this stage.
"What I can say to you is that people of the Gold Coast should feel free to go about their business.
"There is no evidence before us that these incidents are going to continue."
Mr Rynders says recent attacks on the Gold Coast and in Brisbane indicate that tensions between gxxgs are high.
"A lot of it is personality driven and you have seen in a number of groups throughout Australia there has been cross-patching where members have gone from one group to another - that always creates tension," he said.
"At this stage we are not sure what has led to this incident and we are not sure what leads to the overall tension, because they simply don't talk to us."
Meanwhile, the Shopping Centre Council of Australia (SCCA) says there will be a review of security measures on the Gold Coast.
SCCA spokesman Angus Nardi says the organisation is also investigating the weekend attack.
"In overseas areas, some shopping centres do have metal detectors, they do have more strict security measures in place, and certainly a lot more than what's typical in Australia," he said.
"We are certainly not in surveillance mode where people are frisked or going through metal detectors when they are walking through shopping centre entrances, but again it is just something that the industry will evaluate."