Are you sure you are supposed to go to court next week? Usually the only time a victim shows up for court is to testify at trial. And you will have spoken to the DA and been prepped by the DA long before trial starts. Otherwise you don't appear in court for most appearances. In addition, most DA's offices have a victim witness advocate program, where a person from the DA's office is assigned to accompany the victim to court and to act as a go between the DA's office and the victim. I would call the DA's office and ask to speak to the DA assigned to your case and/or the victim witness advocate for more information.
Mr. Farina is correct: verify your court date and contact the District Attorney's office.
How to present yourself? Honestly. Do not volunteer anything. Answer only the question posed to you; don't go off on a tangent because you don't know what is significant and what is not. I always tell people to dress like you're going to church/synagogue/etc. Or the way you would go to your grandmother's 80th birthday party with all the relatives there.
But call the DA.
District Attorney for Alameda County Nancy E. O'Malley has a Victim & Witness Services website: http://www.alcoda.org/victim_witness/
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