4 from her office to her school by three individuals in a pick up truck, and they remained outside of the institution until she left classes; e) in regards to Ms. Evidalia Chacón Ramírez, an employee of the Neiva section of the Association, the Commission informs that she has received various calls in her offices to check her name, that felt obligated to abandon the Neiva region for a while after having denounced a DAS agent (supra, Having Seen 3, section e), and that the building where her office is located is frequented by a DAS agent who has stated to be pressured by the complaint presented by Ms. Chacón; f) in regards to Ms. María Helena Saldarriaga, a member of the Medellín section of the Association, the Commission states in its request that on June 13, 1997, her mother received a telephone call in which an unknown person indicated to her that she was right to her husband, who is disappeared; g) in regards to Adriana Diosa, Piedad Martín and Maria Eugenia López, the Commission alleges they have received mistaken telephone calls; h) in regards to Erik Antonio Arellano Bautista and José Publio Bautista, the Commission states that the imminent judicial decision in the case of the disappearance of their mother and aunt (supra, Having Seen 3, section k) will affect them. According to the Commission, Colombia has not taken any effective action to protect these persons and “despite the existence of precautionary measures solicited by the Commission on behalf of various members of the organization... the harassment has continued and has increased, culminating in the attempt on the section office of Medellín on June 24, 1997.” 5. The Commission brief of July 16, 1997, in which it presented supplementary information to the Court in relation with its request for provisional measures in this case. This additional information is summarized as follows: a) On May 20, and June 2, 1997, two people appeared at the offices of the Association, asked for Yanette Bautista and left a letter signed by an officer cited in the investigation for the disappearance of 14 students from the National University; b) on May 25, 1997, a man indicated to the landlord of the apartment of Mr. José Publio Bautista that he knew the apartment number where Mr. Publio lived because in that same building another officer of the DAS also lived there and they “did not want” someone that supported indigents and marginalized persons to live in that sector. On May 27, 1997, Mr. Publio Bautista was followed by a vehicle without license plates, and with smoked windows; c) On June 20, 1997, the Administrative Contentious Tribunal of del Valle, denied the administrative complaint for nullification in the case in which ex-General Alvaro Velandia Hurtado was condemned for the disappearance of Ms. Nydia Erika Bautista (supra 3, section k). In said proceedings the son of Ms. Bautista, Erik Antonio Arellano Bautista, unsuccessfully tried to become a civil party to the case; d) on June 23, 1997, Mr. Erik Antonio Arellano Bautista discovered the existence of military intelligence plans to disappear him. As a result, he left Colombia on July 4, 1997.