Put simply, a employer must have a valid reason to dismiss and must use Fair Procedures for carrying out the dismissal.
Most cases are won because of the second reason. Employers carry out a disciplinary and / or appeal procedure and believe or state that they are fair, when often they are not.
Documentation of the procedures followed can be obtained via a subject access request. Though you should have your own record as well.
People are sometimes unsure or unaware if their dismissal was fair or not. Which is why they should contact us.
People often make other claims to WRC alongside an Unfair Dismissal claim. Which is fine, though it is important to avoid making duplicate, invalid or irrelevant claims, or claims under the wrong heading.
Ordinarily, a person has to have 12 months service to make a claim for Unfair Dismissal, though there are exceptions to this rule.