It was part of a previous article I linked here but it had a map of overdoses in the city and it's basically the vast majority along the Ctrain stations.
https://www.cbc.ca/news/canada/calga...-use-1.6503503
The Calgary Fire Department tracks overdoses in the city, and a heat map shows the vast majority happen along the train line.
There was also a discussion a bunch of years back about increasing crime along the West Ctrain line on the forums. I remember digging around on the public CPS crime stats and all the neighborhoods with new stations had shown multiple year after year after crime increases above the City average.
Having a Ctrain station nearby meant increased crime even before the recent open drug use that we now see layered over top of it.