KENTVILLE, N.S. -- An expert witness is expected to take the stand today in the trial of a prominent Toronto pastor accused of performing sex acts on a teenage boy more than 40 years ago in Nova Scotia.

Last week, Brent Hawkes denied the allegations of indecent assault and gross indecency in a courtroom in Kentville, N.S.

Hawkes told the court: "It's not true. It did not happen."

Last Tuesday, a man testified that Hawkes led him down a hallway during a drunken get-together at his trailer in Greenwood, N.S., and forced oral sex on him in a bedroom.

Hawkes, then a teacher in his mid-20s in the Annapolis Valley, told court Thursday it wasn't unusual for students and teachers to stop by his trailer, as they wanted to say goodbye before he moved to Toronto to work with a church.

He denied serving students alcohol on the day in question, and said there was no sexual activity at his trailer.