undocumented migrants to receive industrial accident compensation and use public health services. Ⅵ-1-3. An institutional strategy should be provided to protect undocumented migrants from financial disadvantages such as delay in the payment of wages and/or retirement allowances. 2. Prevention of human rights infringement involving undocumented migrants A. Current status and problems • A recent survey revealed that the periodic crackdown on undocumented migrants by a joint team of the officials of the Ministry of Justice and the police is carried out on a large scale without identifying themselves (37.4%), forcefully entering facilities without prior consent (71.5%), in plain clothes (47.9%) at workplaces (43.0%) or places of residence (17.9%). At least 79.5% of the officials used handcuffs, with some of them using even other police equipment, electric shock batons or net guns. Their violation of the due process and use of violence constitutes a clear case of human rights infringement. Human rights-friendly methods should be used to prevent injury or death in the course of carrying out crackdown on undocumented migrants. 72 Human Rights Guidelines on Migration