One of his responsibilities is to keep a watching brief on foreign broadcasts.watching briefˈwatching ˌbrief noun [countable] British English 
One of his responsibilities is to keep a watching brief on foreign broadcasts.
EXAMPLES FROM THE CORPUS
- The Economics and Industry Group has a watching brief on the state of the brewing industry.
COLLOCATIONS FROM THE ENTRY One of his responsibilities is to keep a watching brief on foreign broadcasts.
instructions to someone to watch a situation carefully but not to become involved in it: One of his responsibilities is to keep a watching brief on foreign broadcasts. One of his responsibilities is to keep a watching brief on foreign broadcasts.