The Criminal Investigations Division (CID) was tasked by the head of the Manpower Directorate with finding Israeli MIAs, estimated at about 900 at the time. They did so by getting testimonies, following the Arab media for news of POWs, searching for clues at the battle sites, as well as physical searches. As a lesson from the difficulty of the searches, the CID recommended that army boots be produced with a socket for an additional dog tag, a recommendation accepted and practiced ever since.