The fifth Amendment would not apply to the allegations in the civil complaint. It’s still applies to his testimony with regard to uncharged criminal conduct. In other words, he cannot be required to testify in the civil case to something that would incriminate him in an uncharged criminal matter. At least that’s my understanding as an attorney, however, I admit I never have to deal with this issue and the one time it almost came up, the other lawyer never asked my witness the right questions.