 There remained a range of disagreements about the management of the royal forests, which involved a special legal system that had resulted in a source of considerable royal revenue; complaints existed over both the implementation of these courts, and the geographic boundaries of the royal forests.A complementary charter, the Charter of the Forest, was created, pardoning existing forest offences, imposing new controls over the forest courts, and establishing a review of the forest boundaries.To distinguish the two charters, the term "magna carta libertatum", "the great charter of liberties", was used by the scribes to refer to the larger document, which in time became known simply as Magna Carta.