(a) 
It is unlawful for any person to knowingly be a Spectator at a Side Show Event conducted on a public street or highway or off-street parking facility.
(b) 
It is unlawful for any person to knowingly be a Spectator at the location of Preparations for a Sideshow Event on a public street or highway or off-street parking facility.
(c) 
Nothing in this section prohibits peace officers or their agents who are acting in the course of their official duties from being Spectators at a Sideshow Event or at the location of Preparations for any Sideshow Event.
(a) 
Notwithstanding any other provision of law, to prove a violation of this Chapter admissible evidence may include, but is not required to include, or limited to, any of the following:
(1) 
The time of day.
(2) 
The nature and description of the Scene, including the number and configuration of traffic lanes.
(3) 
The number of people at the Scene.
(4) 
The location of the person charged in relation to any person, group of persons or vehicle(s) present at the Scene.
(5) 
The approximate number and/or descriptions of motor vehicles at the Scene.
(6) 
Whether the motor vehicles at the Scene have been modified or altered to increase power, acceleration, speed, or handling.
(7) 
The person charged, drove or was transported to the Scene.
(b) 
Evidence of prior acts may be admissible to show the propensity of the person to be present at or attend a Sideshow Event 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 person that a Sideshow Event was taking place at the time of the presently charged offense. Prior acts are not limited to those that occurred within the City of San Leandro. These prior acts may include, but are not limited to:
(1) 
The person charged has previously participated in or organized, promoted, instigated, assisted, or facilitated a Sideshow Event.
(2) 
The person charged has previously attended or been a Spectator at a Sideshow Event.
(3) 
The person charged was previously present at a location where Preparations were being made for any Sideshow Event or where a Sideshow Event was in progress.