Yes behind paywall but holy fudge!
https://www.winnipegfreepress.com/local/air-canada-passengers-interviewed-on-plane-were-unlawfully-detained-criminal-lawyer-says-486751971.html
In a nutshell flight attendant finds their passport missing and when arriving in Winnipeg AirCan calls the RCMP and then the fun begins as everyones gets interviewed and id photographed.