Answer grounded in published legislation
Your question
according to the law is sex between a 31 and 18 +6 monthes legal when full consent is given and she is your firlfriend
The supplied sources do not state Namibia’s age of consent for sexual intercourse or whether sex between a 31-year-old and an 18-year-and-6-month-old is lawful. They address marriage requirements and certain other offences, not consensual sex between adults; being girlfriends or boyfriends is not addressed. 1245
Verified sources
Where this answer comes from
Combating of Rape Act 8 of 2000
has had sexual intercourse or has performed an act of a sexual nature with another person or is the father of any child, such question shall be determined as a question of fact, and no presumption or rule of law to the effect that a boy under the age of fourteen years is incapable of sexual intercourse, shall operate. (2) The criminal capacity of an accused under the age of fourteen years who is charged with an offence of a sexual nature shall be determined in the same manner as the criminal capacity of an accused under the age of fourteen years who is charged with any other offence. Abolition of cautionary rule relating to offences of a sexual or indecent nature
Marriage Act 25 of 1961
(1) No boy or girl under the age of 18 years shall be capable of contracting a valid marriage except with the written permission of the Minister or any staff member in the Public Service authorized thereto by the Minister, which he or she may grant in any particular case in which he or she considers such marriage desirable: Provided that such permission shall not relieve the parties to the proposed marriage from the obligation to comply with all other requirements prescribed by law: Provided further that such permission shall not be necessary if by reason of any such other requirement the consent of a judge or court having jurisdiction in the matter is necessary and has been granted. [subsec...
Married Persons Equality Act 1 of 1996
subsection (1) of the following subsection: “(1) No boy or girl under the age of 18 years [and no girl under the age of 15 years] shall be capable of contracting a valid marriage except with the written permission of the [Cabinet] Minister or any [officer] staff member in the [Government Service] Public Service authorized thereto by the [Cabinet] Minister, which [it or] he or she may grant in any particular case in which [it or] he or she considers such marriage desirable: Provided that such permission shall not r elieve the parties to the proposed marriage from the obligation to comply with all other requirements prescribed by law: Provided further that such permission shall not be necessar...
Combating of Immoral Practices Act 21 of 1980
(1) Any person who - (a) takes any female to any house or place or detains her there against her will so that any male, whether a particular male or not, may have unlawful carnal intercourse with her; or (b) takes any female to a brothel or detains her there against her will, shall be guilty of an offence and liable on conviction to imprisonment for a period not exceeding seven years. (2) When in any prosecution in terms of subsection (1) it is proved that a female was in any house or at any place so that any male, whether a particular male or not, could have unlawful carnal intercourse with her, or was in any brothel, it shall be deemed that she was taken or detained there against her will...
Marriage Act 14 of 2024
“(2) A person may not give a child out in marriage or engagement if such child - (a) is below the age of 18; or (b) is aged 18 years or above, but does not consent to the marriage or engagement [does not consent to the marriage or engagement or is below the minimum age for marriage contemplated in Marriage Act, 1961 (Act No. 25 of 1961)].”. (b) by the substitution for the first subsection (3) of the following subsection: “(3) A - [(a) child requires the consent of the minister responsible for home affairs in order to marry; and] (b) person who has attained the age of 18 but is below the age of 21 years [also] requires the consent of his or her parent, parents or guardian or guardians or the...
Marriage Act 14 of 2024
“(2) A person may not give a child out in marriage or engagement if such child - (a) is below the age of 18; or (b) is aged 18 years or above, but does not consent to the marriage or engagement [does not consent to the marriage or engagement or is below the minimum age for marriage contemplated in Marriage Act, 1961 (Act No. 25 of 1961)].”. (b) by the substitution for the first subsection (3) of the following subsection: “(3) A - [(a) child requires the consent of the minister responsible for home affairs in order to marry; and] (b) person who has attained the age of 18 but is below the age of 21 years [also] requires the consent of his or her parent, parents or guardian or guardians or the...