Bulgaria joined the European Union in 2007, its compliance with human rights norms, however, is far from perfect. Although the media have a record of unbiased reporting, Bulgaria’s lack of specific legislation protecting the media from state interference is a theoretical weakness. Conditions in Bulgaria’s twelve aging and overcrowded prisons generally are poor. A probate reform in mid-2005 was expected to relieve prison overcrowding. The police have been accused of abusing prisoners and using illegal investigative methods, and institutional incentives discourage full reporting and investigation of many crimes. The constitution guarantees freedom of religion, but local governments have attempted to enforce special registration requirements on some groups not designated as historically entitled to full protection. Besides the Bulgarian Orthodox Church, the faiths so designated are the Jewish, Muslim, and Roman Catholic. Court backlogs and weak court administration make constitutional protection of defendants’ rights problematic in some instances. Institutions for children and adults with mental disabilities The conditions in Bulgaria's network of institutions for children and adults with mental disabilities have raised concerns. The Mental Disability Advocacy Center has launched a collective complaint under the European Committee on Social Rights regarding the failure to provide education for children in social care homes run by the Ministry of Labour and Social Policy; and a case is currently pending before the European Court of Human Rights concerning the alleged failure to investigate inhuman and degrading treatment in institutions for adults. The documentary "Bulgaria's Abandoned Children" (TrueVision, 2007) was broadcast on BBC Four in the UK in September 2007, and depicts the deprivation of food, health-care and education for children at the institution in Mogilino. The widespread institutionalization of children in Bulgaria is unlikely to be consistent with the best interests of the child, and almost certainly violates Article 23 of the Convention on the Rights of the Child and Articles 11, 12 and 13 of the International Covenant on Economic, Social and Cultural Rights (ICESCR) Macedonian minority There exists a small number of individuals identifying as ethnic Macedonian in the Blagoevgrad province of Bulgaria. According to the 2011 census 1,654 people declared themselves to be ethnic Macedonians and 561 from them were living in the Blagoevgrad Province. The Greek Helsinki Monitor reports that the "Bulgarian state and public opinion alike deny their right to self-identification", and that "any actions pertaining to public demonstration of the Macedonian identity in Bulgaria are subjected to a