director general of fair trading
noun[C]
COMMERCEukusin the UK, anofficialwhosejobis to makesurethatbuyingandsellingishonestandfairtobuyers,sellers,producers, andconsumers:
Thedirectorgeneraloffairtradingsaid thatdoublechargingwould beimpossibletojustifytoconsumers.