David Clark at Genomics Law Report has a thorough dissection of the recent and highly restrictive laws passed in Germany governing access to genetic testing. You should read the whole thing to get a sense of what happens when governments grab the wrong end of the regulation stick, but here's the crucial paragraph:
Why is Germany leading the world in terms of paternalistic, regressive legislation against genetic testing? No doubt there are multiple reasons, but it's clear that this regulation is driven in part by a desire to steer well clear of anything that might stir up memories of eugenics and medical experimentation on unwilling subjects conducted half a century ago.
Yet those horrors were the result of a government making decisions for people, against their wishes - and as Clark notes, this Act permits the German government to restrict the ability of individuals to make their own decisions about how and when they access their own genetic information.
If the German government wants to demonstrate that it has learnt its lessons from the horrors of its past, it should step back and allow its citizens to make their own informed decisions about their own health, and to gain access to their own genomes without restriction should they wish to do so.