Thank you for the question.
On the immigration front, a barrier that lots of Hong Kongers have faced, who are newly released from prison, or who have been charged but then not convicted, is the requirement for a police certificate. This is an issue, because when you ask the Hong Kong police for a police certificate, it is signalling to them that you are planning to leave the territory. They might put you in custody again before you leave, or they might have you on some kind of a watch-list. We know as well that people exiting Hong Kong have trouble moving their money from Hong Kong to overseas territories, so that it is a concern as well.
A problem with the police certificate, even if one might be able to get it, is that some convictions have Canadian law equivalence. For example, the wielding of a dangerous weapon, when that weapon in question might be an umbrella, a laser pointer, or a pen, might look to an IRCC officer like a legitimate offence, but that is not the case.
I have spoken to many MPs and IRCC officials, and they have assured me that Hong Kongers who have a legitimate reason to believe that their persecution is political do have a way out and don't have to submit a police certificate if they make that clear in the application. However, not a lot of Hong Kongers know about this, and that's been a difficulty.