A B.C. woman who was the adult in charge at a house party where a 16-year-old girl died has been found not guilty of failing to provide the necessities of life.

The verdict was handed down Friday at B.C. Supreme Court in New Westminster in the case of Victoria Turley, 40.

Teenager Shannon Raymond died at Turley's Maple Ridge home in July 2008 after a party held by her son.

"Happy that it's done. It was very sad," Turley said outside the court after the trial.

The court heard that Turley had been told Raymond had taken ecstasy, and later was told the girl was ill and behaving strangely, and was asked to call an ambulance.

Victoria Turley, right, leaves court with a supporter after the trial. (CBC)

Paramedics were not called until the following morning when Raymond was found not to be breathing. She could not be revived.

The case was heard by Justice Sunny Stromberg-Stein without a jury.

Stein said in her decision that Turley's actions weren't criminal.

"[They were] not a marked departure from what a prudent person would do," Stromberg-Stein said.

But the dead girl's mother, Julie Raymond, said she's still looking for justice.

"We understand what the judge's job was, but at the end of the day, there are morals and ethics we're talking about, and Shannon would still be alive if someone had done the right thing."