Maybe but the thing is would he of had enough evidence to prove it as sure a lot of people believe him after Gus died but could he get enough evidence to prove it well probably as he was close to proving before Gus died and with him being able to walk again he would be able to gather more information about the drug operation as he wouldnāt be relying on Walter to drive him around as while Hank is a good detective he doesnāt do things by the book so yes maybe but thereās a few debatable details about it