I would like to stop for a moment and to look at the events in Kahah from the CONCORD law enforcement perspective. I have several points to make, so bear with me.
First of all, having thought about it, it is my belief that the Yulai Convention & Accords (etc, so forth) indeed do dictate that controlling orbital landings are the jurisdiction of the governing nation state. The Khanid Kingdom forces were within the Accords when they stopped Operation Starfall, and CONCORD acted according to their right and duty in upholding said Accords when they assisted Khanid Navy in stopping the capsuleers in violation of it.
However, the events the previous night are a much less clear case. The wanton destruction of lives by capsuleers is not as such something that is protected by the Accords. Quite the opposite, we tend to be flagged suspect or criminal for much smaller offenses against civilians. Moreover, laws of the Kingdom and of the Amarr Empire are quite specific on the duties in the care of a slave owner or someone currently having their care - though it must be of course admitted that the Kingdom is much more, shall we say, lenient in this respect.
Most interesting in that event was the destruction of the ship of @Samira_Kernher by a CONCORD rapid response unit. Now, many have raged against CONCORD because of this, but in fact it seems that the response unit was merely acting based on a standard call and their overviews - as of course they should.
What makes this whole thing incredibly hairy is that apparently Kernher was attacked by concord because the Khanid Navy general on the field, Soshan Fayez, tagged her criminal.
Now, tagging capsuleers suspect so that national navies or other capsuleers can interfere, that we are used to. National navies and CONCORD itself does that quite regularly, and it was what happened at Starfall, too.
But this was not suspect, but criminal, calling a CONCORD quick response in a high-security system. Kernher had at that point not engaged in any action forbidden by the Yulai Accords; she was not attempting a landing; she was not in an armed ship. It seems the only reason to flag her for CONCORD response was that her presence annoyed a general of the local navy.
I feel this is a dangerous precedent. If national officers can simply start calling CONCORD responses when things in space do not go their way, or when they want to protect atrocities, even atrocities illegal by their own laws, where will it stop?
CONCORD is, and should be, a tool for upholding the Accords. It should not be a tool for national navies to use for their own purposes.
Or if it should, I have plenty of suggestions for where the Republic Fleet could use this power, too.