So cool, this is a right proper point and click adventure game. The mystery itself is a little straightforward but that's probably for the best in a jam game. The different systems and modes work together well and I really like the corkboard string physics just kinda bouncing around.
One thing I think you can work on is screen-space economy, because right now you can pile up multiple windows one on top of another and the game looks pretty cluttered in that state. It might be best to hide some windows when others are open to not overwhelm the screen with lots of different things at once.
I love how you can have a mid-investigation snack, but is our partner going to face any consequences for having a, erm... pre-investigation snack? It feels pretty clear what they did, and I think it's interesting that you can't include it in your accusation.