Event is first of its kind in the city since recreational marijuana legalization.

When Sacha Hockenhull organized his first cannabis exposition in Calgary four years ago, his friends said he would get arrested and his family threatened to disown him.

He watched hundreds of people file through HempFest at the Edmonton Convention Centre on Saturday, the first major event of its kind in the city since recreational marijuana legalization.

"Now the conversation is totally different," said Hockenhull. "When I say I run a cannabis show, people say, 'Tell me everything you know.'"

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Jordan Omstead ~ CBC News ~