- Is this relevant for the genocide accusations, depending on how Israel does it?
Yes, it is relevant - all violations of the Geneva Convention by Israel, against Palestinians, can be used as evidence to prove the genocidal intents of Netanyahu's government. Specifically, the 1949 Fourth Geneva Convention (GCIV) has a provision that prohibits the desecration of corpses:
Rule 113 Treatment of the dead. The obligation to take all possible measures to prevent the dead from being despoiled (or pillaged)
Note that Israel is one of the few countries that objects to the GCIV as Article 49 of the Fourth Geneva Convention also includes the provision:
The Occupying Power shall not deport or transfer parts of its own civilian population into the territory it occupies.
which Israel staunchly opposes:
“In 1976 the Israeli government maintained its attitude of non-recognition of the applicability of the Fourth 1949 Geneva Convention in the occupied territories. The ICRC, in contrast, has consistently stated its opinion that all conditions existed for the applicability of that Convention.”
(Ofcourse, transferring population, killing and / or chasing away the native population is also now internationally recognised as genocide and is precisely what Israel is being accused of for a long time).
- What kind of precautions would Israel need to take to make it legal? For example do they need to make sure that there are records to go with each corpse to make sure that they can be matched with their previous location/grave markers/identification?
Ideally, Israel should seek permission, and even work with the Palestine government for the exhumation of corpses and its examination. If that is not possible, it should work with international organisations who can monitor and ensure that Israel isn't wantonly desecrating or destroying the graves and dead bodies, that Israel treats the dead with the dignity they deserve and is putting them back in the grave again with all proper customs followed.
Israel does have a "weak" defense that it is trying to identify dead hostages - Hamas has publicly claimed that Israel has intentionally or unintentionally killed many hostages during its onslaught on Gaza. I say weak, because Israel has consistently prevented relief workers from doing there work, and any dead hostages could have been identified earlier itself if they had been allowed to do their job. And the more likely reason for these exhumations are to identify Hamas members so that Netanyahu can claim use it for propaganda, to blunt the claim that the death of hostages in the bombing were thoughtless and "unnecessary".
- What about the destruction of the graveyards other than the corpses, i.e. the grave markers, works of art, infrastructure, etc.?
If care and attention is not taken to preserve them, or not restore them on damage or destruction, these can indeed be considered as proof of cultural genocide against Palestinians.
References:
- Fourth Geneva Convention
- Question of the Observance of the Fourth Geneva Convention of 1949 in Occupied Palestinian Territory
- Hamas claims 50 Gaza hostages have been killed by Israeli bombing
- For Netanyahu’s Government, Israeli Hostages Are Just a Propaganda Tool