Copyright Government of Botswana 25. Staff  26. Class-child ratio  (2) Any restriction on a person's freedom of movement that is involved in his or her lawful  detention shall not be held to be inc onsistent with or in contravention of this section. (3) Nothing contained in or done under the authority of any law shall be held to be  inconsistent with or in contravention of this section to the extent that the law in question makes  provision-  (4) If any person whose freedom of move ment has been restricted by order under such a  provision as is referred to in subsection (3)( a ) of this section (other than a restriction which is  applicable to persons generally or to general classes of persons) so requests at any time during  the period of that restriction not earlier than six months after the order was made or six months  after he or she last made such request, as the case may be, his or her case shall be reviewed by  an independent and impartial tribunal presided over by a person, qualifie d to be enrolled as an  advocate in Botswana, appointed by the Chief Justice. (5) On any review by a tribunal in pursuance of this section of the case of a person whose  freedom of movement has been restricted, the tribunal may make recommendations, concern ing  the necessity or expediency of continuing the restriction to the authority by which it was ordered  but, unless it is otherwise provided by law, that authority shall not be obliged to act in accordance  with any such recommendations.  (1) Subject to the provisions of subsections (4), (5) and (7) of this section, no law shall  make any provision that is discriminatory either of itself or in its effect. (2) Subject to the provisio ns of subsections (6), (7) and (8) of this section, no person shall  be treated in a discriminatory manner by any person acting by virtue of any written law or in the  performance of the functions of any public office or any public authority. (3) In this section, the expression "discriminatory" means affording different treatment to  different persons, attributable wholly or mainly to their respective descriptions by race, tribe, place  of origin, political opinions, colour, cree d or sex whereby persons of one such description are  subjected to disabilities or restrictions to which persons of another such description are not made  subject or are accorded privileges or advantages which are not accorded to persons of another  such description.  (4) Subsection (1) of this section shall not apply to any law so far as that law makes  provision-  ( a )  forthe imposition of restrictions that are reasonably required in the interests of defence,  public safety, public order, public morality or public health or the imposition of restrictions  on the acquisition or use by any person of land or other property in Bo tswana and except  so far as that provision or, as the case may be, the thing done under the authority  thereof, is shown not to be reasonably justifiable in a democratic society; ( b )  for the imposition of restrictions on the freedom of movement of any pers on who is not a  citizen of Botswana; ( c )  ........  ( d )  for the imposition of restrictions upon the movement or residence within Botswana of  public officers; or ( e )  for the removal of a person from Botswana to be tried outside Botswana for  a criminal  offence or to undergo imprisonment in some other country in execution of the sentence  of a court in respect of a criminal offence under the law in force in Botswana of which he  or she has been convicted. ( a )  for the appropriation of public revenues or other public funds; ( b )  with respect to persons who are not citizens of Botswana; ( c )  with respect to adoption, marriage, divorce, burial, devolution of property on death or  other matters of personal law; 15.  Protection from discrimination on the grounds of race, etc. 