A/HRC/42/60/Add.2 because child victims and child witnesses are compelling evidence for inculpating suspects and criminal networks involving in trafficking, abuse and exploitation of children. D. Foreigners of Vietnamese Descent (page 17) Paragraph 47 (page 17) Following the outcome of 2015-2016 Immigrant Census, it was found that a number of children whose parents are Vietnamese did not go to school. In this regard, the Ministry of Interior has communicated and coordinated with the Ministry of Education, Youth and Sport to ensure that they go to school like other children. Paragraphs 48-49 (page 18) As regards the birth registration or birth certification, the Ministry of Interior already provided the clarification through Letter No. 1746 dated 23 July 2019. Paragraph 50 (page 18) The Ministry of Interior has strictly implemented the Law on Citizenship and Immigration without segregation by revising the 2015-2016 Immigrant Statistics, thus providing a more specific database for proper solutions. The Ministry of Interior has recently achieved considerable success in confiscating irregular administrative Cambodian documents owned by foreigners and receiving applications for the recognition of immigrant aliens and permanent resident certificates – i.e. putting an end to the long-standing problem of dealing with immigrant aliens in the Kingdom of Cambodia, preventing the issuance of illegal administrative Cambodian documents for foreigners, as well as participating globally in the implementation of the Convention and International Covenant on Human Rights. After the confiscation of the irregular administrative documents owned by foreigners, the Ministry of Interior has instructed the sub-national level administrations and all police units that involve issuing administrative letters and birth certificates for Cambodian spouses, children and immigrant aliens whose documents had been confiscated to expand the administrative services in response to their needs as stated in Circular No. 015 of 1 July 2019 issued by the Ministry of Interior. Paragraph 66: Migration The Royal Government of Cambodia has collaborated with partner organisations (Cambodia Acts, Plan International, and Child Fund), researched data on vulnerability of children in migration, and initiated the establishment of a child-friendly community. The Royal Government of Cambodia has updated the domestic migration in order to:  be aware of migration goals and status (legal and illegal);  provide legal and safe migration training; and  introduce measures in response to the needs of the people, reducing the risks of migration. The Royal Government of Cambodia has established a labour centre, where Foreign Authorities (Thailand) have sent labourers back, for researching information and data related to labourers’ vulnerability and providing them with appropriate services, especially forced labour victims. Through interviews and research, labourers in Thailand face the following risks: 18  Document expiry;  Irregular documents, wrong identities, especially those issued unilaterally by the Thai party (pink card, seaman book or sea book);