That a crime occurred seems very certain, but which exact crime is a lot less clear, and until a lot of digging and cross referencing of records happens, that’s likely to continue to be the case. To arrest, they need to be able to identify a specific crime with identified specific elements in a specific jurisdiction.

It seems like they have had an equivalent of a dump truck load of legos dropped in their lap, and it won’t be hard to assemble a Lego airplane out of it (probably), but yikes.