I'm looking for reference works in the fields of the Philosophy of Law and Political Science on the subject of the Fruit of the Poisonous Tree doctrine: the view that certain products of a legal/administrative process that feed into another similar process should be excluded as input to the second process based on the manner in which the products were procured, rather than on their inherent qualities.
I'm interested in questions of rationale, purpose, legitimacy, and limitations of this doctrine, how it fits in larger legal and political frameworks, how it interacts with other values and doctrines, and in various ways in which it has manifested in various legal and administrative contexts (I'm particularly interested in the field of city planning).