Melbourne: The Australian radio station that made a hoax call to a London hospital treating a pregnant Kate Middleton in 2012 after which an India-origin nurse committed suicide broke the law, a high court ruled today, paving the way for penalties, including possible licence revocation.

Jacintha Saldanha, 46, had accepted the hoax call from 2Day FM DJs -- Michael Christian and Mel Greig -- purporting to be Prince Charles and Queen Elizabeth II, before passing it on to a colleague who divulged details of Kate's morning sickness.