"Besides federal law that prohibits marijuana possession, the California Health and Safety Code also makes it illegal. This is why West Hollywood officials, who had proposed the marijuana policy change as an ordinance, changed it to a resolution. An ordinance would have contradicted state and federal law whereas a resolution merely sends law enforcement a message to leave potheads alone."
http://www.corruptionchronicles.com/...a_illegal.html
this is very intresting, they used language and glitches to elude the laws