Disputes - international:
Iran protests Afghanistan's limiting flow of dammed Helmand River tributaries during drought; Iraq's lack of a maritime boundary with Iran prompts jurisdiction disputes beyond the mouth of the Shatt al Arab in the Persian Gulf; Iran and UAE dispute Tunb Islands and Abu Musa Island, which are occupied by Iran; Azerbaijan, Kazakhstan, and Russia ratified Caspian seabed delimitation treaties based on equidistance, while Iran continues to insist on a one-fifth slice of the sea; Afghan and Iranian commissioners have discussed boundary monument densification and resurvey

Refugees and internally displaced persons:
refugees (country of origin): 2.5-3.0 (1 million registered, 1.5-2.0 million undocumented) (Afghanistan) (2017); 28,268 (Iraq) (2018)

Trafficking in persons:
current situation: Iran is a source, transit, and destination country for men, women, and children subjected to sex trafficking and forced labor; organized groups sex traffic Iranian women and children in Iran and to the UAE and Europe; the transport of girls from and through Iran en route to the Gulf for sexual exploitation or forced marriages is on the rise; Iranian children are also forced to work as beggars, street vendors, and in domestic workshops; Afghan boys forced to work in construction or agriculture are vulnerable to sexual abuse by their employers; Pakistani and Afghan migrants being smuggled to Europe often are subjected to forced labor, including debt bondage
tier rating: Tier 3 – Iran does not comply with the minimum standards for the elimination of trafficking, and is not making significant efforts to do so; the government does not share information on its anti-trafficking efforts, but publically available information from NGOs, the media, and international organizations indicates that Iran is not taking adequate measures to address its trafficking problems, particularly protecting victims; Iranian law does not prohibit all forms of human trafficking; female victims find it extremely difficult to get justice because Iranian courts accord women’s testimony half the weight of men's, and female victims of sexual abuse, including trafficking, are likely to be prosecuted for adultery; the government did not identify or provide protection services to any victims and continued to punish victims for unlawful acts committed as a direct result of being trafficked; the government made some effort to cooperate with neighboring governments and an international organization to combat human trafficking and other crimes (2015)

Illicit drugs:
despite substantial interdiction efforts and considerable control measures along the border with Afghanistan, Iran remains one of the primary transshipment routes for Southwest Asian heroin to Europe; suffers one of the highest opiate addiction rates in the world, and has an increasing problem with synthetic drugs; regularly enforces the death penalty for drug offences; lacks anti-money laundering laws; has reached out to neighboring countries to share counter-drug intelligence