Compatibilists regard subsumption under certain sorts of deterministic psychological laws as sufficient for free will. As _bona fide_ laws, their existence poses problems for the thesis of the unalterability of laws, a cornerstone of the Consequence Argument against compatibilism. The thesis is challenged, although a final judgment must wait upon resolution of controversies about the nature of laws. Another premise of the Consequence Argument affirms the supervenience of mental states on physical states, a doctrine whose truth would not undermine the (...) autonomy of psychological laws, a condition of free will. Requirements for compatibilist acceptance of physicalism are described. (shrink)