Investigating local issues is rewarding and interesting, but it can also be challenging!
The info you need is probably not all in one place, so you'll need to get creative. Tips:
Think like a news reporter who's been assigned write an in-depth story. Where would you look for info?
Consider contacting/interviewing a local expert
Start by doing a Google search along these lines: [your topic Sacramento]. Spend 10 - 20 minutes reading everything you can find about the issue. Keep an open mind at this point, because there may be conflicting information.
As you research, take notes. Write down names of important people, organizations, titles of relevant legislation, etc, that might help you find more info. Later, Google those people/organizations/laws.