There absolutely can, and those rules are enforceable. There are fines. All sorts of sanctions are available. If a fine is levied by the law society against a member, or even against a non-member--because again, the law society regulates the area of practice--the law society can go after someone who's not a member, someone who's hanging out a shingle and representing himself as a lawyer or taking money from someone for that reason. The law society can fine them, and if that fine doesn't get paid, the courts can enforce that fine.
On April 9th, 2008. See this statement in context.