Senate Bill 458 is designed to prevent children from being added to the database by mistake, by
"...closing an apparent loophole that allowed children as young as ten years old to be added to the CalGang database with no legal requirement that their parents or guardians be notified of their inclusion." (see "Brown OKs Parental Notification If Child Added To Gang Data and Challenging a Gang Database).
Penal Code Section 186.34 gives parents be notified that their child is going to be included in the database and to argue against their inclusion.
The Legislative Counsel’s Digest notes the following:
“This bill … require[s], prior to a local law enforcement agency designating, or submitting a document to the Attorney General’s office for … designating, a person as a gang member, associate, or affiliate in a shared gang database [such as CalGang], the local law enforcement agency [must] provide written notice to the person and his or her parent or guardian of the designation and the basis for [it] if the person is under 18 years of age, except as specified.
The bill … authorize[s] the person or his or her parent or guardian to submit written documentation contesting the designation and would require the local law enforcement agency to provide written verification of its decision [whether or not to include the person] within 60 days.”
To read more:
Brown OKs Parental Notification If Child Added To Gang Data (http://losangeles.cbslocal.com/2013/10/14/brown-signs-law-requiring-notification-if-child-added-to-gang-database/)