[4 ] “A notice requiring a person to appear in court as a juror or witness. ” Cf. Bryan A. Gamer, Black's Law Dictionary, 7th edition, at p. 1450, West Group (1999). “A notification to appear as a witness. ” Cf. Linda Picard Wood, J. D.，Merriam Webster's Dictionary of Law, at p. 482, Merriam-Webster, Incorporated, Springfield, Massachusette (1996).

[5 ] “Used instead of a subpoena, this document directs a witness to appear in court at a given time and place or to bring certain documents or things along. * Cf. Daphne Dukelow， The Dictionary of Canadian Law，at p. 1046, Thomson Professional Publishing Canada (1991).

[6] “Cf. John O'Hare & Robert N Hill, Civil Litigation, at p. 164，Longman Group UK Ltd (1990).

[7 ] “ Calling on a person who is not a party to a proceeding or an action to appear in court. " Cf. Daphne Dukelow, The Dictionary of Canadian Law, at p. 161 , Thomson Professional Publishing Canada (1991 ).