A “Loudermill” hearing is part of the "due process" requirement that must be provided to a public sector employee prior to removing or impacting the employment property right (e.g. imposing severe discipline).
The purpose of a "Loudermill hearing" is to provide an employee an opportunity to present their side of the story before the employer makes a decision on discipline.
Prior to the hearing, the employee must be given a Loudermill letter–i.e. specific written notice of the charges and an explanation of the employer's evidence so that the employee can provide a meaningful response and an opportunity to correct factual mistakes in the investigation and to address the type of discipline being considered.