Objectivity and impartiality entails that the internal audit department itself seeks to avoid any conflict of interest. To this end, staff assignments within the internal audit department should be rotated periodically whenever practicable. Internally recruited auditors should not audit activities or functions they performed within the last twelve months.
6.3. Impartiality requires that the internal audit department is not involved in the operations of the entity or in selecting or implementing internal control measures. Otherwise it would have to assume responsibility for these activities, which would impair its judgmental independence.