I actually had no idea about the inner funding and operation of POST so I attempted some research.
Quote from POST website:
"POST funding comes from the Peace Officers' Training Fund (POTF). The POTF receives monies from the State Penalty Assessment Fund, which in turn receives monies from penalty assessments on criminal and traffic fines. Therefore, the POST program is funded primarily by persons who violate the laws that peace officers are trained to enforce. No tax dollars are used to fund the POST program."
http://www.post.ca.gov/About_Us/What_is_POST.asp
Further info:
From a uniondemocrat.com newslink,
"The new year will bring a host of new laws in California, including some that will raise fees for court-related services and “fix-it” violations.
The higher fees and penalties, approved in legislation earlier this year, will fund new construction of courthouses statewide."
http://www.uniondemocrat.com/200812...ws/Court-fines-and-fees-to-see-increase-in-09
I tried to research various places for "penalty assessments" but I couldn't find a source specifically identifying a percentage or amount which gets allocated to POST. Apparently, from penalties, not just from traffic matters, but also criminal cases, an amount from penalties collected results in POST's funding, but certainly not all of the penalties collected. The penalty amounts collected result in funding several other functions, not just POST.
Also try to note a distinction between a "fee" vs. a "penalty", even though both are monies out of a defendant's pocket.