[The Special Rapporteur calls on States to consider progressively abolishing the administrative detention of migrants. In the meantime, Governments should take measures to ensure respect for the human rights of migrants in the context of detention, including by:] Taking into due consideration the particular vulnerabilities of specific groups of migrants including victims of torture, unaccompanied older migrants, migrants with a mental or physical disability and migrants living with HIV/AIDS. Detention of migrants belonging to vulnerable categories and in need of special assistance should be only allowed as a measure of last resort, and they should be provided with adequate medical and psychological assistance;