Amnesty International in 2008 alleged that torture was common in Mauritania, stating that its usage is "deeply anchored in the culture of the security forces", which use it "as a system of investigation and repression". Forms of torture employed include cigarette burns, electric shocks and sexual violence, stated Amnesty International. In 2014, the United States Department of State identified torture by Mauritanian law enforcement as one of the "central human rights problems" in the country. Juan E. Méndez, an independent expert on human rights from the United Nations, reported in 2016 that legal protections against torture were present but not applied in Mauritania, pointing to an "almost total absence of investigations into allegations of torture".