40802. (a) A "speed trap" is either of the following:
(2) A particular section of a highway with a prima facie speed
limit that is provided by this code or by local ordinance under
subparagraph (A) of paragraph (2) of subdivision (a) of Section
22352, or established under Section 22354, 22357, 22358, or 22358.3,
if that prima facie speed limit is not justified by an engineering
and traffic survey conducted within five years prior to the date of
the alleged violation, and enforcement of the speed limit involves
the use of radar or any other electronic device that measures the
speed of moving objects. This paragraph does not apply to a local
street, road, or school zone.
40803. (a) No evidence as to the speed
of a vehicle upon a highway
shall be admitted in any court
upon the trial of any person in any
prosecution under this code upon a charge involving the speed of a
vehicle when the evidence is based upon or obtained from or by the
maintenance or use of a speedtrap.
40804. (a) In any prosecution under this code upon a charge
involving the speed of a vehicle, an officer or other person shall be
incompetent as a witness if the testimony is based upon or obtained
from or by the maintenance or use of a speed trap.
40805. Every court shall be without jurisdiction to render a
judgment of conviction against any person for a violation of this
code involving the speed of a vehicle if the court admits any
evidence or testimony secured in violation of, or which is
inadmissible under this article.