How have the courts interpreted the meaning of the "motive or purpose" of the drafters of a statute?

This court has made it clear that the "motive or purpose of the drafters of a statute is not relevant to its construction, absent reason to conclude that the body which adopted the statute was aware of that purpose and believed the language of the proposal would accomplish it. [Citations.] The opinion of drafters or legislators who sponsor an initiative is not relevant since such opinion does not represent the intent of the electorate and we cannot say with assurance that the voters were aware of the drafters' intent. [Citations.]" (Taxpayers to Limit Campaign Spending v. Fair Pol. Practices Comm. (1990) 51 Cal.3d 744, 764-765, fn. 10, 274 Cal.Rptr. 787, 799 P.2d 1220.)