15Indecent assault on a man
(1)It is an offence for a person to make an indecent assault on a man.
(2)A boy under the age of sixteen cannot in law give any consent which would prevent an act being an assault for the purposes of this section.
(3)A man who is a defective cannot in law give any consent which would prevent an act being an assault for the purposes of this section, but a person is only to be treated as guilty of an indecent assault on a defective by reason of that incapacity to consent, if that person knew or had reason to suspect him to be a defective.
(4)Section thirty-nine of this Act (which relates to the competence as a witness of the wife or husband of the accused) does not apply in the case of this section, except on a charge of indecent assault on a boy under the age of seventeen.
(5)For the purposes of the last foregoing subsection a person shall be presumed, unless the contrary is proved, to have been under the age of seventeen at the time of the offence charged if he is stated in the charge or indictment, and appears to the court, to have been so.