10 Incest by a man.E+W
(1)It is an offence for a man to have sexual intercourse with a woman whom he knows to be his grand-daughter, daughter, sister or mother.
(2)In the foregoing subsection “sister” includes half-sister, and for the purposes of that subsection any expression importing a relationship between two people shall be taken to apply notwithstanding that the relationship is not traced through lawful wedlock.