In domestic law, why i sthe concept of 'property' so important?

Thinking about the relationship between the determination of environmnetal policy and the creation of environmental law:
A. In domestic law, why i sthe concept of 'property' so important?
B. What influences are exterted by international issues upon the formulation of international and domestic laws?

Because it is what the legal system is based on.
Property begets inherant rights of the property owner.

The second part concerns countries turning suspects over to other countries where they will stand trial.

The concept of property or ownership has no single or universally accepted definition. Like other foundational concepts which have great weight in public discourse, popular usage varies broadly. Various scholarly communities (e.g., law, economics, anthropology, sociology) may treat the concept more systematically, but their definitions likewise vary within and between fields.

In common use, property is simply 'one's own thing' and refers to the relationship between individuals and the objects which they see as being their own to dispense with as they see fit. Scholars in the social sciences frequently conceive of property as a 'bundle of rights and obligations.' They stress that property is not a relationship between people and things, but a relationship between people with regard to things. Property is often conceptualized as the rights of 'ownership' as defined in law. Private property is that which belongs to an individual; public property is that which belongs to a community collectively or a State.

Modern property rights conceive of ownership and possession as belonging to legal individuals, even if the legal individual is not a real person. Thus, corporations, governments and other collective forms of ownership are framed in terms of individual ownership. Exceptions to this pattern include the "commons", which belong to a defined community, and the "public domain", to which access is unlimited.

Property rights are found in the oldest laws written down, and equate the expectation of use or profit to some payment from the very beginning. Modern property rights can be said to begin with the transition from ownership by entities as being the primary form of property right, to the theory that property rights are to promote the general good, and specifically encourage economic development and utilization of property.