<P> The "fruit of the poisonous tree" doctrine is an extension of the exclusionary rule, which, subject to some exceptions, prevents evidence obtained in violation of the Fourth Amendment from being admitted in a criminal trial . Like the exclusionary rule, the fruit of the poisonous tree doctrine is intended to deter police from using illegal means to obtain evidence . </P> <P> The doctrine is subject to four main exceptions . The tainted evidence is admissible if: </P> <Ol> <Li> it was discovered in part as a result of an independent, untainted source; or </Li> <Li> it would inevitably have been discovered despite the tainted source; or </Li> <Li> the chain of causation between the illegal action and the tainted evidence is too attenuated; or </Li> <Li> the search warrant was not found to be valid based on probable cause, but was executed by government agents in good faith (called the good - faith exception). </Li> </Ol> <Li> it was discovered in part as a result of an independent, untainted source; or </Li>

Which of the following would best describe the fruit of the poisonous tree doctrine