It is rare for people to be fully aware of their rights. Without expert assistance, something could be said or done that negatively affects your case. A professional will guide you through the interview process so that you are informed in respect of making decisions about if you should answer questions and how to answer them. Having a legal professional with you at the police station also enables them to make representations early on to the police concerning bail and have the skill to negotiate the early resolution of your case where possible.