Doctor jailed for drugging and assaulting registrar

A senior oncologist who spiked a young colleague's drink before sexually assaulting her will spend at least two years and three months behind bars for his crimes.

John Henry Kearsley, 63, was sentenced in the NSW District Court court on Friday, nearly three years after he invited the 32-year-old registrar to his home in the inner-Sydney suburb of Glebe to discuss mentoring, fellowship options, and her forthcoming medical exams.

According to the agreed facts, Kearsley laced his colleague's wine glass with lorazepam. When dizziness began to kick in, he suggested she lie on his couch for a "relaxation exercise".

She awoke on the bed in Kearsley's guest room to find him massaging her back and kissing her breast.

When the allegations surfaced, Kearsley was barred from practice and suspended without pay from his role as director of radiation oncology at St George Hospital in Sydney's