Case 4 On Sunday, May 30, 1982, police officers of the City of Calgary attended at premises owned by Big M whose business is open to the public. They witnessed several transactions including the sale of groceries, plastic cups and a bicycle lock. Big M was charged with a violation of Section 4 of the Lord's Day Act that says "it is not lawful for any person on the Lord's Day, except as provided herein, or in any provincial Act or law in force on or after the 1st day of March 1907, to se9ll or offer for sale or purchase any goods, chattels, or other personal property, or any real estate, or to carry on or transact any business of his ordinary calling, or in connection with such calling, or for gain to do, or employ any other person to do, on that day, any work, business, or labour. Big M has challenged the constitutionality of the Lord's Day Act.