It is an offence for a person to apply or administer to, or cause to be taken by, a woman any drug, matter or thing with intent to stupefy or overpower her so as thereby to enable any man to have unlawful sexual intercourse with her.

A person shall not be convicted of an offence under this section on the evidence of one witness only, unless the witness is corroborated in some material particular by evidence implicating the accused.