181. (1) In proceedings for a relevant offence, it shall be a defence for the person charged with the offence to prove that he or she has made a payment in accordance with section 88, pursuant to a fixed payment notice issued in respect of that offence.

(2) In this section—

“fixed payment notice” shall be construed in accordance with section 88(1);

“relevant offence” has the meaning assigned to it by section 86.