Interrupted Signal

From: Mr. Black
Description: A powerful signal amplifier is installed in the Security Service’s headquarters. For some reason, it doesn’t work now. I think it’s because Violet or her Octopuses disabled the device. I need to disassemble and examine the amplifier - pass me your tools!
Completed: I’ve removed the amplifier cover. Let’s see, what do we have here? Ha, I knew it - a jammer bug is installed inside to block the signal! I need to process all the evidence found - the foggy reagent, ballots, the badges... All this is evidence of Violet’s crimes!