Under s. 626, a "qualified" juror is defined as a person who "according to ... the laws of a province" is qualified and who is "summoned as a juror" in accordance with the governing provincial law:
Qualification of jurors
626. (1) A person who is qualified as a juror according to, and summoned as a juror in accordance with, the laws of a province is qualified to serve as a juror in criminal proceedings in that province.
No disqualification based on sex
(2) Notwithstanding any law of a province referred to in subsection (1), no person may be disqualified, exempted or excused from serving as a juror in criminal proceedings on the grounds of his or her sex.
R.S., 1985, c. C-46, s. 626; R.S., 1985, c. 27 (1st Supp.), s. 128.
Each province will have a Juries Act, or equivalent which sets out the eligibility and the process for summoning them to court.