Originally Posted by
xobile
What makes you think CBP doesn't have access to Canadian databases, or the other way around? I believe there was a white paper some time ago that said they pull from US, Canadian, UK, and Interpol databases when someone pulls up or applies. Any information sharing agreements would almost certainly include those.
I think so too. While each country may have a wider access to its own databases, I would assume part of administering a shared program like Nexus and also managing a shared border is the ability to request *some* information from other countries in real-time. At the very least a simple confirmation of identity documents validity and a yay or nay to adjudicate admission at the border. I believe the term they use is "derogatory information." So if CBP or CBSA scans a Canadian or US passport at their respective POEs, each will immediately receive some information on that individual that might/should include criminal background check. Everything is digitized post 9/11 and is a simple API call (with appropriate credentials and permissions)