I've always been of the position that lawyers interpret law, but do not make the law. However, in that process an evolution occurs: if a lawyer successfully conveys an interpretation of a law that is contradictory to the subject of the person who wrote it, it is often re-written. In that sense, the lawyer was party to changed law.
A judge can also make a law. There is no more judicial restraint in America. They're not bound by staying within the literal writings of laws like lawyers are, but they do take a lawyer's interpretation, sprinkle in some political activism, and boom, you have a new law.
In a lot of cases, laws are influenced before they're ever written. They exist in the air and on the tongues of lawyers, judges, politicians, everyone. The person who actually sits down to write it is honestly the least important person in the equation.