Armenia's constitution provides for a republic with an elected head of state and a unicameral legislature, the National Assembly. The country held a presidential election on February 18, and the OSCE Office for Democratic Institutions and Human Rights (ODIHR) described the election as administered in an overall professional, open, and transparent manner with respect for fundamental freedoms, but marked by shortcomings including an uneven playing field, some serious election day violations, and concerns about the integrity of the electoral process. Authorities maintained effective control over security forces; some members of security forces committed human rights abuses. The most significant human rights problems during the year were corruption and lack of transparency in government, limitations on the right of citizens to change their government, and the limited independence of the judiciary. Allegations of persistent corruption at all levels of government undermined the rule of law, although the government took limited steps to punish corruption by low- and mid-level officials. Despite candidates' ability to campaign freely, flaws in the conduct of the presidential election included a lack of impartiality by the public administration, the misuse of government resources to support the ruling party, credible allegations of vote buying, continued shortcomings in the implementation of the electoral code, and a complaints and appeals process that failed to provide for effective redress. OSCE/ODIHR also noted a tendency of significantly better final results for the incumbent in the majority of stations with above-average turnout, indicating "possible serious problems with voting and counting" which raised "concerns about the integrity of the electoral process." Courts remained subjected to political pressure from the executive branch, which resulted in some politically motivated prosecutions and sentencing, and the Court of Cassation exercised considerable control over judges' decisions at all levels. Other abuses reported during the year included suspicious deaths in the military under noncombat conditions, continued hazing and other mistreatment of conscripts by officers and fellow soldiers, and lack of accountability for such actions. Police allegedly continued to employ torture to obtain confessions and reportedly beat citizens during arrest and interrogation. Many prisons were overcrowded, unsanitary, and lacking in medical services for inmates. Authorities continued to arrest and detain criminal suspects without reasonable suspicion and to detain individuals arbitrarily. Trials were often lengthy, and courts failed to enforce laws providing for fair trials. Authorities did not adequately enforce laws against government intrusion on the right to privacy and unlawful searches. Outside of the pre-election period, media coverage during the year lacked diversity of political opinion. While the government released all imprisoned Jehovah's Witnesses, government restrictions affected some minority religious groups, although most registered religious groups reported no significant legal impediments to their activities. Members of religious minorities suffered from societal discrimination. Domestic violence remained a problem but largely went unreported to authorities. Human trafficking was a problem, but authorities made efforts to combat it. Persons with disabilities experienced discrimination in almost all areas of life. Military and prison authorities subjected lesbian, gay, bisexual, and transgender (LGBT) persons to abuse and discrimination; societal discrimination also was a problem. The government limited workers' rights and weakly enforced labor laws.