Diane Bourne, 22, worked as a federal public servant in Ottawa when she disappeared. ((Ontario Provincial Police))

A man whose wife disappeared three decades agowas in court Friday afternoon to face weapons charges after police with dogs began a search the day before at his eastern Ontario farm.

Gordon Bourne, 56,appeared in a Perth, Ont., courtroomwhile major crime and canine unit investigators continuedcombinghisfarmhouse andwrecking yardonKidd Road in Ashton, about 40 kilometres southwest of Ottawa, Ontario Provincial Police said.

Bourne's wife, Diane, was 22when she went missingin March of 1976.

Police would not say whether the search warrant being executed by the major crime and canine units since Thursday was related to that case.

Police estimated that they could be at the property for as long as 10 days.

According to the OPP Missing Persons list, police conducted an extensive search for the dark-haired, brown-eyed woman, who was last seen at her home in Ashton, but was unable to find her.

Her father also walked around the property for years looking for hisdaughter, said a website maintained by Porchlight Canada, a volunteer organization dedicated to finding missing persons.

At the time of her disappearance,the mother of twoworked for the federal government in Ottawa, the site reported. Her husbandrepaired vehicles and worked their farm, which was in his family.The couple's children were one and three years old when their mother disappeared.

The OPP site describesDiane Bourneat the time of her disappearance as being about five-foot-two and 145 pounds, with a heavy build.She is believed to have been wearing a three-quarter-length green and white winter coat.