3 most common violations by the union are mentioned below, pick one to tell us more about the topic.

What are the three most common errors unions make in challenging a just cause discharge?

1. Failing to screen the facts and circumstances or to assess properly the companys case. Before deciding to proceed with the grievance, the union needs to be thorough in its investigation and assess the possibility of losing or setting a harmful precedent.

2. Failing to offer successful post-discharge evidence of rehabilitation. In cases involving discharge for drug and alcohol use, a union can demonstrate to the arbi- trator the rehabilitation of the employee discharged.

3. Relying on uncorroborated hearsay evidence or bad precedents. A union should carefully screen its evidence for corroboration and its precedents when citing prior arbitration awards to make sure they support the unions position.

Mention sources if used.