Before bailiffs can be used for enforcement with council tax debts they need to obtain a magistrates liability order. This does not give the bailiff the right to break into your home, they must use peaceable entry. It is important that you do not let the bailiffs into your property as, once they have been allowed in, they have the right to force entry in future. County Court Judgments are a form of enforcement used for civil debts whereas liability orders are used for statutory debts (council tax is a statutory debt).
On the whole if a bailiff has been sent to your home it will be following a magistrates liability order. However, it is possible for the council to choose to enforce the debt through the county court. They would do this if they wanted access to more enforcement options. Ultimately, if you fail to comply with a magistrates liability order the council are entitled to issue further sanctions, which could lead to imprisonment.

This question has been answered by Christians Against Poverty, a leading debt charity offering hope and a solution to anyone in debt.