Thank you for the question.
I think this is the challenge all the countries face that have a certain interest in people being able to work and live. Therefore, I think the problems in Canada are the same as in Germany.
We always try to clearly distinguish between those who want to enter legally and others. And for those who are here under visa obligations, the visa offices of the European Union are mainly compatible with the German ones. Here we clearly check whether the application is on good grounds and we issue a visa. The entry's then without further problems.
Of course, we always discover fraud. We discover misuse of the system. And here we have various techniques to identify it first. It's a long list, actually. It's about document security, assessment, profiling. This is the part of the visa office, and then of course it's about effective border control. There are trained personnel who filter those who come with no good reasons. Within the country there are of course fewer controls, as we do have an area here in Europe without inner border controls. There are only random checks at airports, at train stations, and then so on and so forth.
It's difficult. It's a mass phenomenon. There's no intention to introduce a major control regime, but there are certain places where you can actually find them. This is if it comes to work or residency permits. The administration here has a certain obligation to find out whether the person is eligible to work or for a prolongation of the visa. It's a whole range of measures, and also international cooperation, that are conducive to this end.