147. Indecent assaults on boys under eighteen. Any person who unlawfully and indecently assaults a boy under the age of eighteen years commits a felony and is liable to imprisonment for fourteen years, with or without corporal punishment. 148. Indecent practices. Any person who, whether in public or in private, commits any act of gross indecency with another person or procures another person to commit any act of gross indecency with him or her or attempts to procure the commission of any such act by any person with himself or herself or with another person, whether in public or in private, commits an offence and is liable to imprisonment for seven years. 149. Incest. (1) Any person who has sexual intercourse with another person with whom, to his or her knowledge, any of the following relationships exists— mother father mother’s daughter father’s son daughter son father’s mother father’s father mother’s mother mother’s father son’s daughter son’s son daughter’s daughter daughter’s son sister brother wife’s mother husband’s father wife’s daughter husband’s son father’s sister father’s brother mother’s sister mother’s brother brother’s daughter brother’s son sister’s daughter sister’s son father’s brother’s daughter father’s brother’s son mother’s sister’s daughter mother’s sister’s son son’s wife daughter’s husband father’s wife mother’s husband commits an offence and is liable to imprisonment for seven years or, if that other person is under the age of eighteen years of age, to imprisonment for life.