Slavery was not a part of the CA Constitution, as Mexico had abolished slavery in 1829, as a stab at Texas, where it was legal. Several subsequent court cases wobbled a bit on the issue, and a California version of the fugitive slave law was on the books for a couple of years.
see http://www.sfmuseum.org/hist5/caladmit.html
Way more complex and detailed was:
http://users.humboldt.edu/ogayle/hist383/Politics1850-1860.html
see http://www.sfmuseum.org/hist5/caladmit.html
Way more complex and detailed was:
http://users.humboldt.edu/ogayle/hist383/Politics1850-1860.html