Isn't the writer of a law the ultimate authority and final say in its interpretation?

[onenote]

13. The lawyers might refer the court to statements by the author

but statements made after the enactment of a piece of legislation as opposed to statements made during the debate and consideration of legislation are given little weight. If the author described it in a particular manner during the debate it sometimes will be given weight since those voting for or against it had that information at the time they voted. But statements made after the legislation was enacted, standing alone, aren't really considered particularly relevant.