This is a matter of vital importance because a problem of economic development is identifying the membership of customary landowning groups and the owners. Disputes between mining and forestry companies and landowner groups often devolve on the issue of whether the companies entered into contractual relations for the use of land with the true owners. Customary property—usually land—cannot be devised by will. It can only be inherited according to the custom of the deceased's people. The Lands Act was amended in 2010 along with the Land Group Incorporation Act, intended to improve the management of state land, mechanisms for dispute resolution over land, and to enable customary landowners to be better able to access finance and possible partnerships over portions of their land, if they seek to develop it for urban or rural economic activities. The Land Group Incorporation Act requires more specific identification of the customary landowners than hitherto and their more specific authorisation before any land arrangements are determined; (a major issue in recent years has been a land grab, using, or rather misusing, the Lease-Leaseback provision under the Land Act, notably using 'Special Agricultural and Business Leases' (SABLs) to acquire vast tracts of customary land, purportedly for agricultural projects, but in an almost all cases as a back-door mechanism for securing tropical forest resources for logging—circumventing the more exacting requirements of the Forest Act, for securing Timber Permits (which must comply with sustainability requirements and be competitively secured, and with the customary landowners approval). Following a national outcry, these SABLs have been subject to a Commission of Inquiry, established in mid-2011, for which the report is still awaited for initial presentation to the Prime Minister and Parliament.