To establish just cause for a discharge, each of the following three elements must be satisfied:
The conduct causing the discharge must be so serious that continuing the employment relationship would jeopardize the employer's rightful interest. If the conduct was an isolated incident of poor judgment and there was no expectation it would be continued or repeated, potential harm may not be shown. The claimant's prior work record is an important factor in determining whether the conduct was an isolated incident or a good faith error in judgment. An employer might not be able to demonstrate that a single violation, even though harmful, would be repeated by a long-term employee with an established pattern of complying with the employer's rules. In this instance, depending on the seriousness of the conduct, it may not be necessary for the employer to discharge the claimant to avoid future harm.
The claimant must have had knowledge of the conduct the employer expected. There does not need to be evidence of a deliberate intent to harm the employer; however, it must be shown the claimant should have been able to anticipate the negative effect of the conduct. Generally, knowledge may not be established unless the employer gave a clear explanation of the expected behavior or had a written policy, except in the case of a violation of a universal standard of conduct. A specific warning is one way to show the claimant had knowledge of the expected conduct. After a warning the claimant should have been given an opportunity to correct the objectionable conduct. If the employer had a progressive disciplinary procedure in place at the time of the separation, it generally must have been followed for knowledge to be established, except in the case of very severe infractions, including criminal actions.
Utah Admin. Code R994-405-202