In October 2018, Canada legalised recreational cannabis for adults at the federal level. The date of the legal change was national, but retail arrangements differed across provinces and territories. Queues were reported outside some shops when legal sales began. One photograph, however, cannot stand for the experience of an entire country.

The striking feature is not simply excitement about a product. A transaction prohibited the day before became possible within a regulated market. People waiting at shop entrances made that legal transition visible. Age checks, retail rules and the availability of stock still mattered. Permission under the law did not guarantee immediate access at the counter.

A finished atlas entry should attach its scene to contemporary reporting that identifies the shop and date. The motives of individual customers cannot be read from their position in line: some may have wanted to witness a historic opening, others simply to make a purchase. What the queue reveals is a modest but memorable fact about sweeping legal change: even when the rules change overnight, customers enter one at a time.

The opening-day line showed that supply and retail rules remained even when prohibition ended. A legal boundary moved overnight, but the product still passed through the till one customer at a time.