New South Wales Police Commissioner Andrew Scipione has rejected calls for an alternative approach to tackle drug use after the death of a woman from an alleged drug overdose at the Stereosonic music festival.

Sylvia Choi, 25, is believed to have suffered a drug overdose at the festival at Sydney's Olympic Park on Saturday afternoon.

She was later pronounced dead in hospital.

NSW Police released a photo of Ms Choi, who was from Oyster Bay in Sydney's south, on Monday.

Commissioner Scipione said he was determined to take a hardline approach to people using recreational drugs and that harm minimisation techniques would not be used by NSW police.

"The unfortunate reality is, there's not much that's recreational in dying from a drug overdose, and that's what's happened now," he said.

"There are many that continue to this day to call for less police interaction, fewer drug dogs, in fact, no drug dogs, fewer police at these events.

"That will never happen."

Commissioner Scipione said the culture of drug use needed to change.

"Culture's not something you can enforce with the law," Commissioner Scipione said.

"It has to be something that comes from those that are involved.

"And so, at some stage hopefully people will realise just how dangerous this is. No good can come from it.

"When you reflect on what's happened, as I say, to lose three young people in three months, tells me that this is a very dangerous pastime."

A 23-year-old woman died at the Dragon Dreaming festival at Wee Jasper, near Canberra, in October and a 26-year-old man died at the Defqon.1 festival at Penrith in September.

About 10 people at the Stereosonic festival were hospitalised suffering from the ill effects of drugs and about 120 were treated at the event for drug intoxication.

There was a massive police presence at Olympic Park and 62 people were issued with drug possession court notices, while seven were charged with drug supply notices.