How do process servers prove service?

Service without proof is a delivery; service with proof is evidence. The entire value of a professional server sits in that difference, because months later, in front of a judge, the question will not be whether documents were served but whether it can be shown.

The contemporaneous record

A trained server writes the file at the door, not at the desk: time of arrival, description of the property, who answered, the exact exchange, how identity was confirmed, a physical description of the person served, what was handed over and how it was received or refused. Contemporaneity is what gives the account weight; memory reconstructed weeks later is what gets accounts picked apart. Identification is layered where needed: verbal confirmation, response to the name, comparison against a supplied photograph or description, and, where a neighbour or colleague confirms identity, that too is recorded.

The formal document

For most civil matters the output is a certificate of service, stating the method, date and details, verified by a statement of truth, the form the court files and relies on. Where sworn evidence is required, for committal applications, insolvency practice and some foreign proceedings, the server swears an affidavit of service before a solicitor or commissioner for oaths. Tremark includes the certificate as standard on every instruction, with affidavits available for a small additional fee.

The supporting layer

Modern practice adds corroboration: photographs of the property and, where relevant, of documents left in position; GPS and time stamped records placing the server at the address; and body worn video on instructions where disputes are foreseeable, used proportionately and handled under data protection law. Little of it is ever needed, because a clean certificate from an independent professional is rarely challenged, and that is precisely the point: the strength of the evidence is why the argument never starts.