A/HRC/7/39 page 15 form of murders,33 massacres, acts of “social cleansing”,34 death threats and child recruitment,35 evidencing the need for ever greater efforts by the authorities to combat these new groups and investigate their possible links with public servants and local government officials. Likewise, the economic influence of these groups tends to encourage corruption amongst authorities. 43. The Government considers security and development to be central to sustainable reintegration of demobilized persons, admittedly aware that the persistence of drug-trafficking and other illegal activities facilitates the relapse of former combatants and renews the capacity for recruitment of all illegal armed groups. The Presidential Advisory Office for Reinsertion is implementing a number of projects for the effective reintegration of the demobilized population. However, it faces serious challenges in trying to secure greater participation of regional and municipal authorities and the business sector to offer alternative means of employment to the demobilized and guarantee their security. This Office draws attention to the fact that many of the victims who have not received reparations in the judicial proceedings under Law 975/2005 perceive the efforts described here as a form of “revictimization” that offends their personal dignity and sense of justice. C. Guerrilla groups 44. The FARC-EP continued to disregard their duty to respect international humanitarian law. They have committed grave and systematic breaches such as massacres, murders, the taking of hostages, the planting of anti-personnel mines, acts of sexual violence, recruitment of children (boys and girls) and terrorist acts. Among their many crimes, members of this group were said to be responsible for two massacres in May and August 2007 with 10 victims (among them a girl) perpetrated in Turbo, Antioquia, as well as the murder of 11 Valle del Cauca assemblymen.36 They also murdered a number of municipal officials, including two councillors in Doncello, Caquetá, and the mayor of San José de Palmar, Chocó. 45. FARC-EP continued taking hostages, among them 10 timber workers in Riosucio, Chocó, a candidate for the mayoral elections in Anorí, Antioquia, and five people in the Department of Nariño who were later found murdered. This tactic is also employed, to a lesser degree, by ELN. 33 For example, the murder in Cali, Valle del Cauca, of Sergio Mauricio Cortés, an activist in the Polo Democrático Alternativo political party, in May 2007. This crime was denounced by the victim’s brother to the Attorney General’s Office. The victim’s brother was murdered at the end of that month. 34 For example, the murder of four women in La Hormiga, Putumayo, in July 2007, supposedly because they were suffering from AIDS, considered to be drug addicts and to have maintained relations with guerrillas. 35 For example, the recruitments reported in Cartagena, Medellin and Valle del Cauca which are quoted in the report of the Secretary-General on children and armed conflict (A/62/609-S/2007/757, para. 116) of 21 December 2007. 36 See note 9 above.