Itu2019s usually a four-stage process:Verbal Warning -- Written Warning -- Suspension -- TerminationHowever itu2019s not that simple. For example, you could have multiple verbal or written warnings.If a situation is very serious (for example a breach of health and safety), you could go directly to suspension or termination. There are just some people whose actions could put the lives of others at risk, and you need them off site as fast as possible.The implementation of each of these needs to follow the legal procedures in your country. If you do it wrong, you could be liable (e.g. unfair dismissal). In most situations, Iu2019d suggest getting legal advice. However if you are in a role that could affect many employees, get training.