This chapter examines the contemporary procedural implementation of safeguards enshrined in global human rights accords and declarations, scrutinising the methodologies by which children in street situations, or those acting on their behalf with their consent, can assert their rights through international complaint mechanisms. It delves into the intricacies of how these protective measures are operationalised in practice, shedding light on the efficacy and accessibility of existing complaint mechanisms. Furthermore, the analysis extends to a curated selection of national legal frameworks, presenting case studies that illustrate the practical application and integration of international human rights instruments within domestic jurisdictions. This comparative approach offers valuable insights into the interplay between international standards and local legal systems, highlighting both the challenges and achievements in translating global human rights principles into tangible protections at the national level.