In Edgar v. Superior Court (1978) 84 Cal.App.3d 430, the plaintiffs' interrogatories "sought all the information contained in the filed reports of prior accidents. The specific information sought included the dates and times of each prior accident; the number of persons involved; the number, if any, killed; the exact location of the accidents, the names and addresses of all witnesses; the lanes of travel of each vehicle involved; the identity of the investigating officers; the cause of the accidents given by the officer; the weather conditions at the time, and whether or not it was considered a causative factor; the light conditions; whether the facts of the accidents were similar to those in which Leslie Edgar was killed; and whether the accidents were caused by a violation of statute, and if so, the statute involved and the name of the person cited." ( Id., at pp. 432-433.)