Three prison guards and a police officer were injured after prisoners overran the Metropolitan Remand Centre at Ravenhall, lighting fires and causing millions of dollars worth of damage.

With just six weeks until NSW implements a similar policy, Corrective Services NSW commissioner Peter Severin had requested a debrief from his Victorian counterpart, a department spokesman said on Wednesday.

"Corrective Services NSW will take a close look at what happened there and address any issues that may be relevant to the preparations for August 10," he said.

In the wake of the riot, smoking bans in prisons were criticised, with RMIT social work expert Jenny Martin warning that smoking bans increased the risk of harm to patients, prisoners and staff.

An avowed anti-smoker, Associate Professor Martin said tensions could be greatly heightened when prisoners and patients were denied access to cigarettes.

The Corrective Services spokesman said it was a legislative requirement that all NSW jails become smoke free.

"Corrective Services NSW is working collaboratively with the Justice Health and Forensic Mental Health Network to make correctional centres smoke-free from August 10," he said.

"Extensive planning has been completed, including consultation with staff and with other jurisdictions, including Queensland and New Zealand, that have successfully implemented smoke free policies.

"There are currently information sessions targeted at all inmates and expert interstate assistance has been obtained to monitor the readiness of the system to implement this change.

"A range of services will be available for staff and inmates to support them to stop smoking, including nicotine replacement therapy, peer and telephone support such as Quitline, and counselling."