Without prejudice to the provisions of article 9 of the International Covenant on Civil and Political Rights, persons arrested or imprisoned without charge shall be accorded the same protection as that accorded under part I and part II, section C, of these rules. Relevant provisions of part II, section A, of these rules shall likewise be applicable where their application may be conducive to the benefit of this special group of persons in custody, provided that no measures shall be taken implying that re-education or rehabilitation is in any way appropriate to persons not convicted of any criminal offence.