Israel's prisons are full of Palestinian hostages kidnapped from Gaza and the West Bank. Their courts have no jurisdiction over them and have no issue calling anyone a terrorist.
> Their courts have no jurisdiction over them
Israel is the occupying power. International law requires that an occupying power provide law & order, so it does have the authority to persecute people who commit crimes (although they are required to keep the laws the same as they were pre-occupation, with some exceptions).
They are also allowed to keep prisoners of war (although i am not sure if hamas counts as that as they are a non-state group). They are allowed to persecute war crimes that enemy combatants commit (as long as they give a fair trial)
> have no issue calling anyone a terrorist.
The phrase "terrorist" doesn't really have much meaning under international law. Israel is free to call its enemies dirty names if it wants, there isn't any rule against calling your enemies mean names.
https://www.middleeastmonitor.com/20231120-880-palestinian-c...
That has nothing to do with why i don't think administrative detention constitutes hostage taking as defined by the geneva convention. Obviously if some hypothetical israeli court approved of hostage taking it would still not be ok.
https://ihl-databases.icrc.org/ar/customary-ihl/v2/rule96
It very clearly fits the definition.
Like if they randomly started grabbing people up in order to trade them, it would very clearly meet the definition, but it doesn't seem like that is what happened.
Also more generally, they hold hostages to compel Palestinians to obey and not resist.
If true, (and the person was not a combatant) that would certainly count as taking a hostage, provided that was the primary reason they detained said person. However if they detained someone primarily for some other purpose and then traded them later, that is a different story.
> Also more generally, they hold hostages to compel Palestinians to obey and not resist.
If you mean they detained someone who was doing some action or intending to do some action in order to compel other people not to do similar things, that probably doesn't count.
If you mean they detained some random person that wasn't involved at all in order to compel someone else to do or not do something, that probably would count.