They need to determine if the fragments are from an actual drone that flew across the border. For all they know it’s fragments of multiple drones collected from multiple other locations and planted there.

Once they’re satisfied that it was flown and crashed, as opposed to planted, then they need to verify if it was Russian. More importantly they’ll want to confirm it was flown in by Russia and wasn’t somehow obtained by another country that wants to frame Russia in an attempt to draw Romania into the conflict.

[–] mea_rah 4 points 1 year ago

The chances of entering a war over a single drone are very slim. People scream "article 5" like it's some inevitable all out military action.

In reality it means proportional reaction which can be as simple as stationing more air defense systems on the border to detect and shut down any further attempts.

So the attribution to russia is one part of the investigation, another is determining the intention and best course of action.