On the data itself, some of the most interesting use cases will rely on the open and transparent nature of the blockchain to read data in an open way, but in terms of access, you cannot crack modern cryptography. I don't think the Government of Canada can.
Nobody in the world can crack modern encryption, and Bitcoin is no different. You probably saw the authorities in the U.S., for example, trying to unlock the phones of criminals. It's the same principle here. Modern and strong encryption is essential for individual liberties.