On the request of the Minister of Interior and Kingdom Relations and the Minister of Defence, the Review Committee on the Intelligence and Security Services (the CTIVD) conducted an investigation into the role of the AIVD and the MIVD in the decision-making related to the security of flight routes. The Dutch Safety Board (the OVV) asked the ministers to submit this request to the CTIVD. The resulting review report was published in 2015.