It's the end of the road for Paul Blair, with the country's highest court refusing him permission to appeal his cannabis convictions.
The Rotorua beneficiaries advocate and qualified barrister, who is in his 60s, must now begin his three months' community detention and 100 hours' community work imposed in May last year.
In a judgment released this week, the Supreme Court refused Blair leave to appeal his conviction for selling cannabis to an undercover police officer and one for possessing cannabis for supply in 2010.
"Overall, the applicant [Blair] raised no matter of general or public importance. Nor is there any indication a substantial miscarriage of justice has occurred," the judgment said.
Blair was originally found guilty of the charges in 2011, but appealed and was granted a retrial. In 2013 he was found guilty again.