You probably should hire an attorney as soon as possible to help you present your case to the prosecution. The attorney can call the prosecution’s attention to errors in the police report or other inaccurate or misunderstood facts that support the charges. In some cases, a defense attorney may even contact the police or prosecution before charges are filed, while the case is still being investigated. This can stop the process at the earliest possible phase. Otherwise, they may seek a dismissal from a judge through a pre-trial motion, which might knock out vital evidence that the prosecution needs to prove the case. Sometimes simply doing nothing can solve the problem, since the prosecution may eventually realize the flaws in their case on their own. However, proactively trying to get rid of the charges before trial is usually a better strategy, since the outcome of a trial is never guaranteed.