From Longman Dictionary of Contemporary Englishfall/slip through the netfall/slip through the netif someone or something falls or slips through the net, a system which was designed to help or check them has not succeeded in doing this In a class of 30 children it is easy for some to slip through the net and learn nothing. → net
Examples from the Corpus
fall/slip through the net• No one knows how many have slipped through the net.• Paul Merton slipped through the net.• Graham, on the other hand, had nearly slipped through the net.• This one slipped through the net.• One group still fell through the net.• Even with the former region's history of testing in primaries, children continue to slip through the net.• In a child-centred class of 30 children it is easy for some to slip through the net and learn nothing. 