This seems to be the original story and sounds a lot more nuanced. We have been on a slippery slope ever since this bullshit started though, so I don't think the concern is totally unwarranted.

A person not isolating voluntarily when ordered to will be given a warning, then a fine, and if that doesn't work, a court may take their freedom, officials explained

https://www.rt.com/news/512644-geramany-covid-prison-bild/