A man high on a potentially lethal dose of methamphetamine when he killed his former partner in a horror road crash north of Adelaide has been jailed for at least two years.
Adam James Cocks pleaded guilty to causing the death of Jasmine White, 29, in the crash near Kapunda in September last year and to driving without a licence.
In the District Court on Thursday, Judge Sydney Tilmouth said Cocks should never have been behind the wheel that day.
"You caused the death of a young woman in circumstances where you should never have driven and where you must have known that you were appreciably affected by amphetamines," Judge Tilmouth said.
"There is a distinct need for both general and personal deterrence, particularly in cases involving drivers with high concentrations of amphetamines owing to the growing prevalence of such a damaging, addictive and insidious drug in our community.
The judge imposed a head sentence of two years and eight months and a non-parole period of just over two years.
He also disqualified Cocks from driving again for 12 years.
In earlier sentencing submissions the 35-year-old offered a tearful apology to the court describing the crash as the "darkest moment in my life".
He said he didn't expect the family of Ms White to forgive him.
"I don't blame anyone for hating me. I wouldn't expect to ever be forgiven," he said in a letter he read to the court.
But Megan King, the mother of the dead woman, told Cocks that, because of her faith, she did not hate him.
"I hate that my daughter Jasmine was taken so violently out this world," she said in her victim impact statement.
"I hate that never again will I be able to hug Jasmine and say 'I love you' to her beautiful face.
"But Adam, I don't hate you and I forgive you.
"I pray that you will always remember what you have done when you got into that car, loaded to the eyeballs on meth."