Definition of Deposition
A deposition is part of the pre-trial investigation where each party has the right to take an oral statement from a witness under oath before the trial. The deposition is done by opposing legal counsel so they can discover evidence prior to the trial. Information gathered at the deposition can be presented later in court. The intent of the deposition is to learn all of the facts before the trial.
Experts suggest there is no reason to "prepare" for a deposition. Do not read documents or other material but rely entirely on materials provided by your lawyer. It is also not a good idea to discuss your case with anyone other than your lawyer. For your deposition you should give an accurate, clear and believable account of your accident and the facts surrounding your case, be prepared and be a believable witness.