My charge was accident involving damage over200$ for hit and run and accident car , but after I was arrested I prove my inocence the case was inmediatly dissmised .
From your question there are many other questions raised. You may be able to get your record expunged or you may not. There are many factors and conditions to consider which are very case dependent which will determine if you can get an expunctiont. From your question I do not believe there is enough information given to determine if you could do it yourself. Also, it is dependent upon your resources and knowledge. Consulting with a criminal defense attorney would help you to determine if you are eligible to get an expunction and if so how to go about it. Feel free to contact me if you have any questions.