In Canada and New Zealand there are increasing calls for recognition of aboriginal rights which previously were ignored or denied because of the application of English law to concepts of property rights and ownership. English legal principles are vitally important in Canadian and New Zealand society, but there has always been room for local adaptations which could have recognised the existing practices and rights of the indigenous peoples. The English law makes various assumptions about ownership of rivers, dividing them into bed, banks and water, and applying various tests of adjoining occupation, tidalness and navigability to determine rights. Aboriginal property rights have been guaranteed and protected by various mechanisms such as government policy, treaty, and the courts, but there is uncertainty about the status of rivers. The form of the survey definition of reserves and rivers is also fundamental to how property rights may be determined. This thesis examines the situation of rivers in Canada and New Zealand through common law, treaty provisions and through what is now, a developing body of applicable and recognised customary/Aboriginal law. From these three legal foundations, a case study approach focuses on the practical situation of the Siksika people on the Bow River in southern Alberta, and the Kai Tahu on the Taieri River in Otago. This investigation concludes that there are various legal mechanisms by which indigenous people may claim rights to the rivers with which they have a relationship; by resorting to English common law principles; by applying new and developing conceptualisations of customary and aboriginal rights doctrines; by appealing to tribunals examining treaty agreements; or by direct negotiation with the Crown. All of these processes require evidence of past and current relationships, use and occupation of rivers by the indigenous claimants. Current undisputed possession and control may be a satisfactory outcome, but ultimately an acknowledgement of ownership may depend on politically negotiated settlements.

Aspects of customary land tenure may survive even where formal rules in a society supersede custom. This thesis is about persisting custom for Maori Freehold land (MFL) in New Zealand, and the Communal Areas (CAs) of Zimbabwe. Three questions are addressed: what unwritten land tenure custom still persists for Ngai Tahu, Shona and Ndebele, what key historical processes and events in New Zealand and Zimbabwe shaped the relationship between people and land into the form it displays today, and how do we explain differences between surviving customary tenure practices in the two countries? The research was based on in-depth interviews. A key difference between the two countries was found to lie in the type and degree of security available over the years to Maori and Shona/Ndebele. Roots of security were found in the substance of the founding treaties and concessions, and thereafter in a variety of other factors including the help (or lack of it) offered by the law in redressing grievances, the level of intermarriage between settler and autochthon, the differing security of land rights offered in urban centres in the respective countries, demographic factors and the availability of state benefits. This research finds that greater security was offered to Maori than to Shona and Ndebele, and that this has reduced the centrality of customary practices with regard to land. The research found that, in Zimbabwe, tenure security in the CAs is still underwritten by communities and that significant investment is still made in both living and dead members of those communities. Another finding is that land custom has adapted dynamically to meet new challenges, such as urban land and CA land sales. In New Zealand, investment in groups that jointly hold rights in MFL has, to some extent been eclipsed by the payment of rates and the availability of services (e.g. state-maintained boundary records and law enforcement mechanisms) and of benefits (e.g. superannuation, disability and unemployment). Land and community are not as closely linked to survival as they were in the past and, for many, they have come to hold largely symbolic value and less practical significance. Overall, it is the pursuit of security and �belonging� that have been the greatest influences on customary land tenure practices in the long term.

Aspects of customary land tenure may survive even where formal rules in a society supersede custom. This thesis is about persisting custom for Maori Freehold land (MFL) in New Zealand, and the Communal Areas (CAs) of Zimbabwe. Three questions are addressed: what unwritten land tenure custom still persists for Ngai Tahu, Shona and Ndebele, what key historical processes and events in New Zealand and Zimbabwe shaped the relationship between people and land into the form it displays today, and how do we explain differences between surviving customary tenure practices in the two countries? The research was based on in-depth interviews. A key difference between the two countries was found to lie in the type and degree of security available over the years to Maori and Shona/Ndebele. Roots of security were found in the substance of the founding treaties and concessions, and thereafter in a variety of other factors including the help (or lack of it) offered by the law in redressing grievances, the level of intermarriage between settler and autochthon, the differing security of land rights offered in urban centres in the respective countries, demographic factors and the availability of state benefits. This research finds that greater security was offered to Maori than to Shona and Ndebele, and that this has reduced the centrality of customary practices with regard to land. The research found that, in Zimbabwe, tenure security in the CAs is still underwritten by communities and that significant investment is still made in both living and dead members of those communities. Another finding is that land custom has adapted dynamically to meet new challenges, such as urban land and CA land sales. In New Zealand, investment in groups that jointly hold rights in MFL has, to some extent been eclipsed by the payment of rates and the availability of services (e.g. state-maintained boundary records and law enforcement mechanisms) and of benefits (e.g. superannuation, disability and unemployment). Land and community are not as closely linked to survival as they were in the past and, for many, they have come to hold largely symbolic value and less practical significance. Overall, it is the pursuit of security and �belonging� that have been the greatest influences on customary land tenure practices in the long term.