He uploaded an English dubbed explanation: youtube/zSEB4if2pJQ#.

He seems super unsavvy when it comes to legal/formal proceedings or authority in general (I don’t mean that as a bad thing, just that it can def affect how things go and escalate).
For one he got the notice in mid April & just continued to review consoles this whole time, didn’t prepare for anything (his channels, personal things, SD cards with all them ROMs, etc).
But other shit-showy things happened too - they took his phone to make a copy & didn’t return it for two months (it’s unclear if they had a warrant or if Italian law recognises what a “personal device” is - EU has yet to compile a delegated act that will unify definitions & personal rights for such modern necessities for all members).

An Italian youtuber with some legal experience explains a bit more (in Italian): youtube./zSEB4if2pJQ#.