The MP and former police inspector yesterday said those who abandon personal responsibility as they party should expect to be "severely punished".

He is part of a government about to bring in tough new measures to stop alcohol- and drug-fuelled violence.

The high-profile death of 18-year-old Thomas Kelly, the victim of a one-punch attack, and most recently of 18-year-old Daniel Christie, both on nights out in Kings Cross, made the reduction of danger a political issue.

Lockouts at 1.30am and last drinks at 3am announced by NSW Premier Barry O'Farrell on Tuesday will apply specifically to a Sydney-CBD precinct but other measures target alcohol-fuelled violence across the state.

Mandatory minimum sentences and greater maximum sentences for drunken assaults will apply within weeks at Dubbo just as they do in Darlinghurst.

Mr Grant highlighted the harsher sentencing regime as the measure out of 16 reforms that was likely to have the most successful impact at Dubbo.

"The proposed increased penalties and deterrent factor that it brings will hopefully be more relevant to Dubbo then the broader Sydney precinct lockouts and last drinks measures," he said yesterday.

He acknowledged a 10pm closing time for all NSW bottle shops would hit the sector but said it was part of a bigger push for a safer community.

"The takeaway closing times will have an impact on operators but hopefully the broader message will hit home enough is enough for drug and alcohol-related violence," he said.

The government's "tough and comprehensive package" yesterday continued to receive both praise and censure across NSW and Australia from politicians, industry groups, police and paramedics and others.

Orana Law Society president Andrew Boog on Tuesday said mandatory jail time would not prove a deterrent to the obnoxious behaviour of people "fuelled up with grog".

Fellow practitioner and NSW Bar Association president Phillip Boulten said that while the package had some appropriate responses, "knee-jerk changes to criminal law" had also been included.

His criticism of mandatory minimum sentences for drunken assaults did not move the Dubbo MP, who had a tough message for the electorate.

"If personal responsibility is abandoned then expect to be severely punished with little community sympathy," Mr Grant said.

"That's the take home message unruly behaviour will no longer (be) tolerated."