A/HRC/4/48 page 43 31. The majority of death threats against journalists were made during the run-up to the elections. In the course of the year, journalists were threatened after having published criticism of the demobilization process, and reports on the criminal activities of the paramilitaries or the links between politicians and public servants with paramilitary groups. 32. The violence against journalists was in many cases attributed to members of paramilitary and guerrilla groups. Acts of violence against journalists by public servants were also reported. Lesbians, gays, bisexuals and transgender persons 33. In 2006, there were reported cases of lesbians, gays, bisexuals and transgender persons who were murdered, injured or threatened. The perpetrators of these acts are unknown. Also reported were cases of violence in the security forces, police abuse (especially against transgender sex-workers) and ill-treatment in prisons. On the other hand, cases still exist of discrimination in educational institutions, in access to employment and in health services. 34. As to the rights of lesbians, gays, bisexuals and transgender persons, there have been some noteworthy local initiativesd aimed at the adoption of institutional policies to safeguard their rights. Other groups in a situation of vulnerability 35. Judicial officials, victims, witnesses and other participants in criminal and disciplinary proceedings have been the targets of acts of violence attributed to members of illegal armed groups in particular. 36. The OHCHR Office has also received complaints of threats, intimidation and acts of discrimination against persons with HIV/AIDS and against members of organizations that provide assistance to this population group. d Particularly in the cities of Bogotá and Medellín and in the Department of Valle.