It would be entirely appropriate to include a provision that, when collecting and sharing information that can have such very significant effects on individual Canadians, CBSA be responsible for accuracy. There should be some process for interrogating the accuracy of that information in an appeals process, and the onus to certify that accuracy should be on CBSA and not individuals or other organizations that are not responsible for collecting it or maintaining it.
On October 5th, 2017. See this statement in context.