(law) tacit approval of someone's wrongdoing(noun)
WordNet. Princeton University. 2010.
Use "tacit consent" in a sentence
"A special method of promulgation was also introduced wtih the express or tacit consent of the Holy See for the decrees of congregations; they were published at the secretariate of the dicasteries from which they emanated."
"In 1906, owing to the necessities of the situation, a law was passed by a combination of the Government with the Conservatives and National Liberals, with the tacit consent of the Centre."