All parole revocation and rescission hearings shall be conducted by an employee of the Board of Pardons and Paroles. The parole of a person who has been allowed to go on parole in accordance with subsection (a) of section 54-125a or section 54-125g, or who has been sentenced to a period of special parole in accordance with subdivision (9) of subsection (b) of section 53a-28, shall be revoked or rescinded if, after such hearing, the employee recommends such revocation or rescission and such recommendation is approved by at least two members of a panel of the board.