Homosexuality is illegal in Guinea. Articles 325-327 of the Penal Code criminalise same-sex activity (unofficial translation):
Paragraph 3: Indecent Assault

Article 325:
Anyone who commits an act that is obscene or against nature with an individual of the same sex will be punished by 6 months – 3 years imprisonment and a fine of between 100,000 – 1,000,000 Guinean francs. If the act is committed with a minor younger than 21 years of age, the maximum penalty will be enforced. If this act is consummated or attempted with violence, the guilty party will be subjected to a punishment of imprisonment for a term of between 5 and 10 years.

Paragraph 4: Public Outrage against Decency

Article 326:
Any intentional act performed publicly which could potentially offend the sense of decency and the morals of people who are involuntarily witness to it shall constitute a public outrage against decency.

Article 327:
Any person who has committed a public outrage against decency will be punished to between 3 months – 2 years imprisonment and a fine of 50,000 – 450,000 Guinean francs or only one of the two. When the outrage has been committed by a group of individuals, the punishment laid out in the above paragraph of this article shall be doubled.

The above articles in the Guinean Penal Code directly violate the provisions of the Constitution, which guarantees equality for all citizens in Article 1.