Having briefed the staff in the office in the Haitian capital, Port-au-Prince, that an investigation was under way, the main part of the investigation commenced. During the investigation 40 witnesses were interviewed. While the investigation was still in progress, the line manager of one of the suspects leaked an investigation report to an unconnected member of staff.
This resulted in three of the suspects physically threatening and intimidating one of the witnesses who had been referred to in the report. This incident led to further charges of bullying and intimidation against these three members of staff.