We can not rightly claim to be against summery justice but we can also say that as a Templar sworn to up hold the Laws of the Empire and Reikland in this case that the Emperor considering only the information we have at the moment may have over stepped his authority.
So the court case by a bunch of noble politicians needs to resolve before people can intervene to stop a ritual sacrifice?
Good plan.
Except as I already explained, that's not how Chaos or the Undead work. In fact, they benefit from people being so obsessed with stopping "a tyrant being a bastard" nobody can stop them from taking over and killing the innocent.
That's why a domestic law enforcement officer like us has the power to kill, to borrow the 40k term, " Heretics". We're basically an Inquisitor. If you don't like that there's a way to temporarily make the law take a backseat because of a biblical apocalypse getting averted, might as well just vote for Marcus to renounce his faith and leave the Order.
We're not "basically a 40k inquisitor" for the record
Like this idea that we have the right to act unilaterally without regard for the law is actually completely incorrect
As a Templar, your authority derives from the Emperor and the Cult of Sigmar, and while it is significant it is by no means absolute. Your mandate permits you free travel within Sigmar's Empire and the right to interview any subject of the Emperor as you see fit, but you are not inherently endowed with the right to judge or sentence them. Instead, you are expected to restrain your suspects and bring them in for trial, where you will serve as the prosecution and obey the ruling of the court.
(Note that this policy is not absolute - Markus executed Herr Bueller in the first update for knowingly giving false testimony before Sigmar, an act of blasphemy that he as a Templar is permitted to punish accordingly. Also, as a noble in a feudal society he has the right to enact summary judgement on non-nobles who fail to offer the respect and deference due to one of his high station.)
Naturally, what you have the legal authority to do and what people will let you get away with are pretty divergent standards, more contingent on the social standing and relative popularity of your target than any legal principle… but Markus will, for personal reasons, always attempt to stay inside the boundaries of the law.
Markus can get away with skirting the law
Particularly at the fuzzy, grey areas
But he does not have the inherent ability to ignore it
If he executes someone that people actually care about without due process, he will in fact get in trouble for it
This mostly protects nobles, because feudalism, which is why him threatening those noble brats was a bluff, he had no actual authority to punish them
The Colleges of Magic would similarly get very cross with us if we tried to declare a Magister a Witch and have them burned unilaterally without fair trial or evidence
There's a reason Victor Saltzpyre was going through the effort of taking Sienna back for a trial rather than summarily executing her for her magic crimes
Note that officially, under the Articles, Magisters have the rights and protections of nobility
Counterpoint: this isn't 2024 where everyone with a cellphone and a coup gets live-tweeted. This is Warhammer Fantasy, and writing is a luxury reserved for the elite.
Your source is not Karl Franz. It's a couple of sailors talking about a rumor going around. You have no proof Karl's being greedy. You only have the word of two greatly removed people of whatever is going on. That's why we have the option of saying "we don't have enough info", all we're making a decision on is info from two randos.
This is misinformation working in real-time.
Our source is the officials manning the tollgate actually
And incomplete info is immaterial to the matter
We are being asked whether or not Karl Franz has the right to strip a vassal of all their lands and holdings by force of arms without trial, without any other explanation
If we say, "no, he doesn't that's an overstepping of his authority", but it turns out that there's more to the story then our answer doesn't suddenly change