You can be interviewed in a criminal case as a suspect or as a witness. The interview may be carried out by the police or by the investigating magistrate. Your rights and obligations will vary depending on the situation that applies to you. Hence you are not obliged in principle to attend a police interview as a witness, but you are required to appear before the investigating magistrate. Furthermore, as a suspect you are not obliged to answer, while you are (usually) obliged to do so as a witness.
We can assist you as your attorney during the interview, whether you are a suspect or a witness.