The adventuring party (D&D 5e level 5) have just managed to commit an audacious attack, destroying an important, visible monument. For the sake of argument let's assume that they have managed to do so without anyone seeing who the attackers were and how they did it, and did not leave behind any "nonmagic" evidence leading to their identities, but did not take any magic precautions.
Immediately after the event the attacked organization is angry, and has significant resources (though player-level appropriate, not wishes or artifacts) and multiple casters (divine and arcane) on site.
What spells and/or magic items would they use to try to find out what happened and who it was?
I looked over the divination spells, and I was surprised that I did not find anything that seemed immediately useful; for example, 4-th level Divination is limited to things that will happen in 1-7 days, but not about what happened ten minutes ago; and there are various spells that would help find a stolen object, but in this case the action was purely destructive (but non-lethal), the party did not take anything. I would expect that in the relatively high-magic D&D setting there must be some magic resources that a powerful organization would use, but what are they?