It is legal to fire someone on the spot for serious misconduct. You do not need to provide someone with notice of termination of employment where, for example, they have been violent at work. However, you do need to ensure that you have afforded your employees procedural fairness to be able to defend an unfair dismissal claim should they dispute their dismissal.This may involvemaking preliminary enquiries before terminating the employment and speaking with the employee to listen to their response beforeimplementing a termination of employment.