The list of circumstances set forth in Section 9.67.040 is not exclusive. Evidence of prior acts may be admissible to show the propensity of the defendant to be present at or attend an illegal motor vehicle speed contest or exhibition of speed, if the prior act or acts occurred within three years of the presently charged offense. These prior acts may always be admissible to show knowledge on the part of the defendant that a speed contest or exhibition of speed was taking place at the time of the presently charged offense. Prior acts are not limited to those that occurred within the City of Signal Hill. (Ord. 2023-11-1545 § 16 (part), 2023)