<P> This was upheld for 12 months , from 1 October 1972 to 30 September 1973 . </P>
<P> This was upheld for 12 months , from 1 October 1972 to 30 September 1973 . </P>
the kansas city preventive patrol experiment was conducted over a period of
the kansas city preventive patrol experiment was conducted over a period of
from 1 October 1972 to 30 September 1973
from 1 October 1972 to 30 September 1973