[quote=@Fallenreaper]
<Snipped quote by Dedonus>

Couldn't the fact, in cases as they have made enemies or I assume, arise that outing their indenties puts them at high risk? Not sure but I think there's ways around that which allows witnesses to be anyonmous. 

[/quote]

Could be an agreement to leave identities out of it made prior to trial and deal with the issue in another subtle way...

To take things back to the 5th...

"Now, sir, are you now, or have you ever been known as the masked vigilante... uhh... Vigilante?"
*In full costume* "I choose to invoke my 5th amendment rights."

That would work nicely, to kind of read-between-the-lines for everyone in the court room and would make for a kind of cool moment.