A/HRC/59/49 (m) Develop national systems for the collection, centralization and systematization of case data, including disaggregated data on sex, gender and nationalities, migrant deaths and disappearances, including forced disappearances, in line with the right to privacy; (n) Establish independent review bodies to assess and mitigate the impact of laws, policies and practices on the risk of migrants dying, going missing or being subjected to enforced disappearance in order to tackle the root causes of such phenomena. B. Search operations and investigations 81. With regard to search operations and investigations, the Special Rapporteur recommends that States: (a) Strengthen coordination and cooperation among the authorities of countries of origin, transit and destination; (b) Ensure the exchange of information for the search and investigation of disappearances of migrants, the return of human remains, where these can be located and identified, and the provision of appropriate reparation measures; (c) Facilitate access of family members of migrants to consular or diplomatic assistance from their country of origin and to humanitarian visas to travel to countries of transit or destination where the disappearance of their loved ones occurred for purposes of search and identification; (d) Guarantee that institutions charged with the search and investigation of disappeared persons immediately accept reports of disappeared persons and initiate search and investigation measures promptly and ex officio; (e) Establish capacity-building and exchanges of best practices between States of origin, transit and destination, including by appointing national focal points on missing migrants for transnational cooperation on searches and policy; (f) Scale up State-led humanitarian assistance along migration routes, irrespective of the administrative status of the migrants in need of support; (g) Provide enhanced financial and logistical resources to carry out prompt and adequate search and rescue operations for disappeared migrants and migrants in distress on both land and sea, including through the use of new digital technologies; (h) Revise or repeal laws and policies that criminalize or obstruct the provision of humanitarian assistance to migrants and ensure unhindered access and safe operational spaces for humanitarian actors to deliver assistance, in line with humanitarian principles; (i) Ensure the proactive, effective and prompt coordination of search and rescue actions by countries in shared search and rescue zones; (j) Establish a national registry for disappeared persons in the context of migration and a unified data system for the exchange of ante-mortem and post-mortem data between countries of origin, transit and destination for the purpose of identification; (k) Ensure that the unified data system is protected by an effective firewall, separated from access by law enforcement authorities or from any immigration enforcement purposes; (l) Strengthen location and identification processes of disappeared migrants; (m) Allocate additional financial and logistical resources for forensic and coroners’ services and ensure sufficient space in morgues pending autopsy, identification, burial or repatriation of the remains of deceased migrants; 19