“The Judicial Vicar is one of the offices that is mandated in Canon Law (1420 §1) to be in every diocese. In general, he is a priest with specialized legal training who has oversight over all canonical affairs.”
Father Philip Creurer is the current Judicial Vicar of the Archdiocese of Edmonton.
“While the Vicar General is empowered to act on behalf of the Archbishop in his executive functions, the Judicial Vicar is the one who helps him exercise his judicial functions”, Father Philip explains.
More information at https://caedm.ca/PastoralScene/entryid/705/asking-for-a-friend-whats-a-judicial-vicar.