Dr. Carpenter relocated her dental practice to premises in a new shopping mall and placed an advertisement to that effect in the local newspapers. The notice conformed with the advertising standards of the dental profession in the province, but one of the newspapers decided to print a "humaninterest" story and did an interview with Dr. Carpenter. The story was printed without first having been shown to Dr. Carpenter, and a number of advertisements for dental supplies appeared on the same page. At the same time, Dr. Carpenter ordered a sign announcing the change of premises, which she intended to be displayed in the window of her old premises. Instead, by mistake, the sign was displayed in a public area of the shopping mall.

The professional association considered that the sign and the advertisements that accompanied the newspaper article constituted breaches of the professional advertising code and gave notice to Dr. Carpenter of a disciplinary hearing, which could result in the cancellation or suspension of her licence to practise.

On what grounds, if any, can the validity of the disciplinary hearing and the professional regulations be challenged?