Does Romans 3:31 refer to the Law or the law?

In Romans 3:21, most English translations distinguish the two uses of νόμος (law) by capitalizing the second: Νυνὶ δὲ χωρὶς νόμου δικαιοσύνη θεοῦ πεφανέρωται μαρτυρουμένη ὑπὸ τοῦ νόμου καὶ τῶν προφητῶν, (NA28) But now the righteousness of…