 Many desire the expansion of problem-solving courts, but for a number of reasons, especially economic ones, expansion on a large scale seems unlikely; in fact, in some jurisdictions, economic factors have even led to the elimination of such courts.For these and other reasons, a current interest on the part of many TJ scholars and proponents is to "mainstream" TJ—that is, to try to apply TJ practices and principles in "ordinary" courts, especially in criminal, juvenile, and perhaps family matters.In order to mainstream TJ, a first analytical step is to see to what extent existing provisions of current codes are "friendly"to TJ—that is, whether their legal structure is sufficient to permit the introduction of TJ practices.