It would be wise to, unless you have a genuine reason for not being able to attend, but you should notify your employer of this. You are entitled to be told the subject matter of the hearing and to be given reasonable notice of the time it is to be held. If your employer has not complied with this you would be within your rights to ask that the meeting be postponed until such time that you can attend and that the employer has given you sufficient information about the reason for the hearing.
You are entitled to be accompanied to a disciplinary hearing by a work colleague or a trade union representative. Your employer should be reasonably accommodating about scheduling the meeting so that your chosen companion can to attend.
Please see our Employment section.
Posted in: Employment