The Latin maxim audi alteram partem, meaning "listen to
the other side," is a fundamental principle of natural
justice. It safeguards access to justice and ensures a fair hearing
for all parties—not only those formally joined in legal
proceedings but also third parties whose rights may be
affected.
Its origins can arguably be traced back to ancient Greece. The
renowned orator Demosthenes noted that the Athenian judicial
oath—attributed by some, albeit uncertainly, to
Solon—required judges to listen equally to both the
prosecutor and the defendant (καὶ
ἀκροάσομαι
τε καὶ τοῦ
κατηγόρου
καὶ τοῦ
ἀπολογουμένου
ὁμοίως
ἀμφοῖν).
Although the audi alteram partem principle is widely applied in
judicial systems worldwide, limited exceptions exist. These usually
involve circumstances of urgency, public safety, or national
security. Such exceptions must, however, be reasonable,
proportionate, and justified in context.