(1) Where an authorised officer has reasonable grounds for believing that a person is committing, or has committed, a relevant offence, the authorised officer may serve a notice in writing (in this Part referred to as a "fixed payment notice") in the prescribed form stating that -

(a) the person is alleged to have committed the relevant offence concerned,

(b) the person may, during the period of 21 days beginning on the date of the fixed payment notice, make to the Authority a payment of such amount or amounts as may be prescribed, being an amount of not more than €5,000 accompanied by the notice or copy thereof,

(c) the person is not obliged to make the payment specified in the notice,

(d) a prosecution of the person in respect of the alleged relevant offence will not be instituted during the period of 21 days beginning on the date of the notice and, if the payment specified in the notice is made during that period, no prosecution in respect of the alleged relevant offence will be instituted, and