Privacy and information commissioner Jill Clayton plans to appeal a recent decision by Alberta's top court that found that the province's privacy laws are unconstitutional. 

Clayton announced on Monday that she will ask the Supreme Court of Canada for leave to appeal a ruling involving the United Food and Commercial Workers, Local 401.

"The decision impacts the ability of individuals to control personal information about their activities in public places," Clayton said in a news release. "It also has broader implications for substantially similar legislation across Canada."

The commissioner's office ruled that the union broke Alberta's Personal Information Protection Act  when it videotaped people crossing a picket line in Edmonton during a strike at the Palace Casino in 2006.

Union officials used some images in posters and planned to post the video on a website, although that never happened.

Subsequent court decisions ruled in favour of the union, finding that the provincial act contravened its right to freedom of expression