A/HRC/44/20 measures to deprivation of liberty to the broadest set of prisoners possible, consistent with the protection of public safety; (k) Release unconditionally all persons unlawfully or arbitrarily deprived of liberty, including through the implementation of the decisions of the Working Group on Arbitrary Detention; (l) Ensure effective investigation and sanctioning of those responsible for cases of torture and ill-treatment, and strengthen the National Commission for the Prevention of Torture, in compliance with international human rights norms; (m) Guarantee a full-scale, United Nations-led response to the humanitarian situation, including increased access for humanitarian actors, facilitating the entry of the World Food Programme, regularizing the presence of international nongovernmental organizations and ensuring the protection of all humanitarian workers; (n) Adopt all necessary measures to ensure the safe, dignified and voluntary return and sustainable reintegration of Venezuelan returnees, ensure their access to health care and social protection, and also ensure their protection from discrimination and stigmatization; (o) Increase engagement with international human rights protection mechanisms, including the special procedures system, by receiving regular official visits from mandate holders; (p) Facilitate the establishment of an OHCHR office in the country as an effective means of assisting the State in tackling the human rights challenges and concerns addressed in the present report. 87. The High Commissioner recommends that Member States consider revising, suspending or lifting sectoral sanctions imposed on the Bolivarian Republic of Venezuela, which impede the Government’s efforts to address the combined impact on the population of the humanitarian situation and the COVID-19 pandemic. 16