Bill C-337 was introduced by former interim Conservative leader Rona Ambrose in February 2017 and was passed unanimously by the House of Commons just three months later.

A May report in the online version of Policy Options magazine estimates just one per cent of Canada's 2,160 judges in the provincial superior and lower courts are aboriginal, while three per cent are racial minorities.

The letter was sent Friday in response to a Global story that found the department of justice doesn’t have any “readily available” information about the diversity of federal judicial appointments from the past 20 years.