"In the specific moment you're alluding to she made the decision to suspend the Dublin rules because they were clearly failing"
The problem with "making the decision" is that there is no executive order for the German chancellor, as apposed to the US president in the German constitution. Ruling by chancellor decree had fallen out of favor in Germany in the last 70 years. Ms. Merkel with her dubious past with East German state security ("IM Erika") does not need to be re-elected. She needs to stand in front of a judge!
I'll probably be unable to convince you with legal arguments, so maybe you should file a criminal complaint (which is easy and free) and let actual legal professionals make that determination.
And before you accuse the system of justice of just being part of some sort of conspiracy, I'll add that there are plenty of examples of courts disagreeing with the administrations. Most recent examples I can think of is the failed bid to ban the right-wing NPD, and their verdict regarding the ban of muslim headdresses.
What exactly in the article are you referring to? He -- a former supreme court judge of one of the German states, not of Germany -- doesn't outright claim anything illegal was done.
He sort of, fairly timidly, questions it, with the flimsiest of legal analogies: the legislature has to agree to military missions, e.g. participation in UN missions, and thus (?!) something something Merkel. It's a complete non-sequitur.
Now if you look into this Kopp Verlag, you will find that the Verfassungsschutz is keeping an eye on them because they might be spreading right-wing ideology which seeks to overthrow the constitutional structure of Germany.
Interesting source for claims of unconstitutional behavior by Merkel ^^.
Now I'm not saying that any of this necessarily makes what they say untrue, but I guess your choice of sources makes one thing clear: Nobody here will be able to convince you.
The problem with "making the decision" is that there is no executive order for the German chancellor, as apposed to the US president in the German constitution. Ruling by chancellor decree had fallen out of favor in Germany in the last 70 years. Ms. Merkel with her dubious past with East German state security ("IM Erika") does not need to be re-elected. She needs to stand in front of a judge!