spot-check

English Thesaurus

1. pick out random samples for examination in order to ensure high quality (verb.cognition)

hypernym	:	ascertain, assure, check, control, ensure, insure, see, see to it,
definition	:	be careful or certain to do something; make certain of something (verb.cognition)

derivation	:	spot check,
definition	:	a check on work performance or product quality made at random times without warning (noun.act)

derivation	:	spot check,
definition	:	a check on work performance or product quality made at random times without warning (noun.act)