Possibility to appeal

Constitution of Botswana 1966, Sections 106

Appeal to Court of Appeal

An appeal shall lie as of right to the Court of Appeal from any decision of the High Court which involves the interpretation of this Constitution, other than a decision of the High Court

under section 69(1) of this Constitution:

Provided that no appeal shall lie from a determination of the High Court under this section dismissing an application on the ground that it is frivolous or vexatious.

Constitution of Botswana 1966, Section 69(1)  

Determination of questions as to membership of National Assembly

(1) The High Court shall have jurisdiction to hear and determine any question whether—

(a) any person has been validly elected as an Elected Member of the National Assembly or the seat of any such Member has become vacant;

(b) any person has been validly elected as Speaker of the Assembly or, having been so elected, has vacated the office of Speaker.

http://aceproject.org/ero-en/regions/africa/BW/Constitution%20of%20Botswana%201966.pdf