Just FYI, from what I know, if people decide to write anyone in Denmark, it is probably OK to write it in English. Many people in Denmark speak/ read/ write English, especially in cosmopolitan areas. I've had family who visited Copenhagen and the language barrier was not much of an issue.
Also, it may be that we are short of information here and some things are confidential/ lost in translation but why does the Danish gov't need to interfere? Even with psychiatric disorders, at least in the US, people, especially adults, cannot be forcibly placed into any situation unless they are deemed a harm to themselves or to others. Is the situation that she is not "complying" with medical orders from someone other than her GP, not able to eat due to ME but the gov't is thinking this is a psychiatric rather than medical reason, etc.? Most first world countries have some rules they abide by although we have seen those rules incorrectly applied with ME.