There are two different types of assistance in the law of criminal procedure. According to § 68b of the Code of Criminal Procedure (StPO), there is a witness advisor who has to be a lawyer at the same time. The witness counsel informs the witnesses about their procedural rights and shall properly accompany them in all stages of the proceeding. The witness can choose if they require a witness advisor. Alternatively, under certain conditions a witness advisor can be assigned. Usually this is the case within sex crimes. According to § 149 I StPO, the partner of the accused person must be allowed as assistance during the main hearing and needs to be listened to on demand. According to § 149 II StPO, this also applies for legal representatives.