To work with the CLES Subject Chairs Gary McLachlan No ratings yet. Log in to rate. The currect subjects in CLES are: - Biosciences (go to Subject Wall) - Biosciences PGT (go to Subject Wall) - Geography (go to Subject Wall) - Psychology (go to Subject Wall) - Psychology PGT (go to Subject Wall) - Sport and Health Science (go to Subject Wall) - Sport and Health Science PGT (go to Subject Wall) Back