Sarah, who acted as a police prosecutor in Auckland, was jailed for four years after admitting four charges of supplying methamphetamine and one of dishonestly accessing the police computer for criminal purposes.
He made 80 separate search queries related to people connected to a police drug investigation called Operation Ark – an investigation into which Sarah knew none of the operational detail.
He passed information he obtained to at least two people allegedly involved in the drug dealing.
The Law Society has now struck him off the roll of barristers and solicitors, saying there was no place in the legal profession for someone found guilty of these crimes.
“There was really only one outcome in this matter,” Law Society president Chris Moore said.