watchdog
noun [ C ]
SOCIAL RESPONSIBILITY uk/ˈwɒtʃdɒɡ/ usan official organization that is responsible for checking that companies obey particular rules and laws so that the standard of the products or services they provide is acceptable:
government/independent/official watchdog The government created an independent watchdog to monitor the rising overseas aid budget.
a competition/market watchdog
a pollution/safety watchdog
a watchdog agency/group/organization
See also
consumer watchdog