a. “Employee” is defined as a person employed at the workplace, for any work on regular, temporary, ad-hoc or daily wage basis, either directly or through an agent, including a contractor, with or without the knowledge of the principal employer, whether for remuneration or not, or working on a voluntary basis or otherwise, whether the terms of employment are express or implied and includes a coworker, a contract worker, probationer, trainee, apprentice or by any other such name.