Anyone could be called to court in two different ways, either through a summons or as a result of being arresting, without a serarch warrant, which leads to a charge and then a court hearing. Today, a summons by the Magistrates Court is not the usual and most common way of appearing in court. The Magistrates Court would mostly use a summons to find someone who has previously been granted bail for an offence, and failed to show up to their hearing.
If you are summoned to court, usually for a breach of bail conditions, the prosecuter must provide details of the offence which has been committed, which is submitted in writing to the Magistrates court. The police can apply for a summons verbally if they take an oath from the Magistrates court. This will happen if they wish to obtain an arrest warrant.
A summons must be served to the person being summoned. It can either be in person or through the mail. The defendant has the chance to plead guilty to a summary offence via post, providing the maximum penalty does not exceed 3 months imprisonment. If the defendant pleads guilty by post, then they do not need to attend court and the matter will be handled in their absense.