Sierra Leone

Whereas every person in Sierra Leone is entitled to the fundamental human rights and freedoms of the individual, that is to say, has the right, whatever his race, tribe, place of origin, political opinion, colour, creed or sex, but subject to respect for the rights and freedoms of others and for the public interest, to each and all of the following—
…
b. freedom of conscience, of expression and of assembly and association;
… (Sec. 15)

(1) Except with his own consent, no person shall be hindered in the enjoyment of his freedom of assembly and association, that is to say, his right to assemble freely and associate with other persons and in particular to form or belong to any political party, trade unions or other economic, social or professional associations, national or international, for the protection of his interests.
… (Sec. 26)

Every citizen of Sierra Leone being eighteen years of age and above and of sound mind shall have the right to vote, and accordingly shall be entitled to be registered as a voter for the purposes of public elections and referenda. (Sec. 31)

(1) In any referendum held pursuant to an Act of Parliament, every person who is entitled to vote in elections of Members of Parliament shall be entitled to vote at such referendum and no other person may so vote;
… (Sec. 37)