steaky said:
Yes, CBSA doesn't provide records of people exit Canada. So there is no proof how long he was in Canada.
He has entry stamps into China so on the basis that he only travelled between China and Canada then days in Canada would correspond to the period between an entry stamp into Canada and an entry stamp into China. How did you get the 972 days in your initial post? How many days did the visa post calculate he had in the 5 years prior to his TD application?
Did your husband ay any time in Canada during the 5 years in question:
1. Go for any medical services - doctor, hospital, lab work, dentist, Optician? Get receipts and a record of billing from the provincial health authority e.g. OHIP if you are in Ontario - go their site on how to do this
2. Attend a gym - get a letter from the gym.
3. Go to a place of worship - church, temple, mosque etc - get a letter from the relevant worship body e.g priest, rabbi etc
4. Did he open any bank accounts that required his presence in Canada? - show copy of the opening documents with dates and signature.
5. Did he obtain or renew his driver licence - get an abstract and receipts.
These things on their own are not conclusive but together will help build a picture of his presence.