Canadian law requires hiring practices to be fair and non-discriminatory. The Employment Equity Act requires employers to remove any barriers that would disadvantage women, disabled persons, Aboriginal peoples, and visible minorities from gaining employment. An example of this would be to ensure that the building in which the person would be employed has wheelchair access. All job candidates for the same position should be asked the same questions.
This is a federal act, but each province has its own labour laws as well. Each jurisdiction has an administrative authority which handles complaints of discriminatory hiring practices based on age, sex, sexual orientation, disability, race, creed, colour, religion, ethnic origin, citizenship, marital status, or record of offences.