A/HRC/28/28 undermine the effectiveness of any counter-terrorism measure, and thereby contribute to greater radicalization. 55. I urge States to take measures to ensure that counter-terrorism laws and implementing measures are consistent with international human rights standards and compliant with the principle of legality. A regular review of the compliance of counter-terrorism laws and practices with human rights standards is critical to ensure that these measures are specific, necessary, effective and proportionate. The validity of any exceptional measure should be restricted in time through the inclusion of a sunset clause. I encourage all States, as part of the legislative process, to ensure broad and inclusive consultations with all relevant stakeholders and a review of draft counter-terrorism legislation by relevant domestic bodies before adoption to ensure that legislation is coherent with relevant international human rights standards. 56. I also urge States, as part of their efforts to stem the flow of foreign fighters, to integrate compliance with their obligations under international human rights law by stepping up efforts: (a) To address the conditions conducive to terrorism and to counter violent extremism, including by fostering engagement between communities and the authorities in order to build trust, supporting local ownership of initiatives and developing positive counter-narratives. The role of civil society should be supported through the creation of an enabling environment, including through the adoption of legislation protecting the space afforded to civil society and the promotion of nondiscriminatory measures; (b) To combat impunity and ensure accountability for all gross violations of international human rights law and of international humanitarian law through the prompt, thorough, independent and effective investigation and prosecution of those responsible; (c) To ensure that any measures taken in an effort to stem the flow of foreign fighters and to prevent the commission of criminal acts comply with their obligations under international human rights law. 57. Throughout its activities in support of the implementation of the Global Counter-Terrorism Strategy, the Counter-Terrorism Implementation Task Force and its entities should intensify efforts to promote respect for human rights and the rule of law as the fundamental basis of the fight against terrorism. This should include the promotion of compliance with human rights as an integral part of assistance to States in the development and implementation of counter-terrorism-related legislation and policy. OHCHR stands ready to assist Member States in the development and implementation of human rights-compliant legislation and implementation measures, including in follow-up to Security Council resolution 2178 (2014). 17