The investigation unit is a part of BRAC's internal control mechanism. In 2006 a separate investigation unit was formed to address the increased number of complaints under the monitoring department. The unit was created to uphold organisational ethics and values, and to ensure greater transparency and accountability of overall management and internal observation procedures. The investigation unit investigates complaints related to financial irregularities, violation of organisational rules and regulations, nepotism, indecent behavior, and arbitrariness across BRAC. It also investigates grievances from BRAC's stakeholders.