An independent review into New South Wales' controversial lockout laws has suggested easing the time the lockout takes effect for live entertainment venues and extending opening hours for bottle shops.

Suggested changes: Relaxing the 1:30am lockout to 2:00am for live entertainment venues for a two-year trial period

Relaxing the 1:30am lockout to 2:00am for live entertainment venues for a two-year trial period Relaxing the 3:00am last drinks rule to 3:30am for the trial period

Relaxing the 3:00am last drinks rule to 3:30am for the trial period Extending the statewide sale of takeaway alcohol from 10:00pm to 11:00pm

Extending the statewide sale of takeaway alcohol from 10:00pm to 11:00pm Allowing home delivery of alcohol until midnight

Former High Court judge Ian Callinan handed his report into lockout laws to the Government today, after trawling through more than 1,800 public submissions.

The laws were introduced in 2014 following a spate of fatal one-punch attacks.

The 151-page report found the laws have reduced admissions to emergency departments and made Kings Cross and Sydney's CBD safer places, but they have also come at a cost to the city's vibrancy and employment opportunities.

Mr Callinan suggests a number of changes the Government could choose to make, including relaxing the 1:30 am lockout to 2:00am for live entertainment venues.

He acknowledged the laws had strong supporters and detractors, who have "expressed very strong, sometimes strident and dogmatic views".

The effectiveness of the laws has been heavily debated and sparked protest movements, such as #KeepSydneyOpen.

The hospitality and liquor industry has blamed the lockouts for a decline in night-time business activity, while the Premier, anti-alcohol groups and doctors have broadly supported the measures.

Lockouts have 'transformed' Sydney

Mr Callinan said the laws had achieved the objectives the Government had intended.

"I have formed the view that the two precincts at night were grossly overcrowded, violent, noisy, and in places dirty before the amendments, but that after them they were transformed into much safer, quieter and cleaner areas," Mr Callinan said.

But, he said the laws had come at a cost, which was difficult to quantify.

"A relaxation of the amendments to this effect may go some way to an orderly restoration of vibrancy and employment opportunities in the precincts," he said.

"It needs to be understood again however that such a relaxation carries the risk of greater density and consumption of more alcohol in the precincts.

"It needs also to be understood that relaxing the amendments, even in this way, involves risk."

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Government to respond by year's end

After receiving the report, Deputy Premier Troy Grant said the Government would consider the document and deliver its response before the end of the year.

He said stakeholder briefings and community drop-in information sessions would be held over the next few weeks to inform the public on the report's findings.

Deputy Premier Troy Grant says the Government will brief stakeholders in the coming weeks. ( AAP: Lukas Coch )

"There is significant community and stakeholder interest in the report and we are releasing it immediately to give everyone a chance to consider its findings and recommendations," Mr Grant said

Mr Callinan was appointed in February to provide an independent assessment of the liquor laws.

When he announced the review, Deputy Premier Troy Grant said it would be "open, genuine and transparent" and insisted "there is no predetermined outcome here".

But ahead of the review, Premier Mike Baird wrote a Facebook post indicating he was reluctant to make any changes to the laws.

"As I've said before, it is going to take a lot for me to change my mind on a policy that is so clearly improving this city," Mr Baird wrote.

Mr Callinan asked for more time to complete his review last month, in the wake of a Supreme Court decision which granted several live music venues and strip clubs exemptions from the laws.

The fact that Sydney's Star Casino lies just outside the lockout zone has been one point of controversy and has led to the Mr Baird being branded with the nickname "Casino Mike" by some of his critics.