21Betting with young persons
(1)If any person—
(a)has any betting transaction with a young person ; or
(b)employs a young person in the effecting of any betting transaction or in a licensed betting office; or
(c)receives or negotiates any bet through a young person,
he shall be guilty of an offence:
Provided that a person shall not be guilty of an offence under this subsection by reason of—
(i)the employment of a young person in the effecting of betting transactions by post; or
(ii)the carriage by a young person of a communication relating to a betting transaction for the purposes of its conveyance by post.
(2)In this section, the expression, " young person " means a person—
(a)who is under the age of eighteen years and whom the person committing an offence in relation to him under this section knows, or ought to know, to be under that age; or
(b)who is apparently under the said age:
Provided that in the case of any proceedings under this section for an offence in respect of a person apparently under the said age, it shall be a defence to prove that at the time of the alleged offence he had in fact attained that age.