Explanation: The exclusionary rule prevents the government from using most evidence gathered in violation of the United States Constitution. The decision in Mapp v. Ohio established that the exclusionary rule applies to evidence gained from an unreasonable search or seizure in violation of the Fourth Amendment.
The aspect that would be most challenging in this type of communication would be pretending to be nice no matter the crimes they committed. This would be challenging because having a civil conversation with someone who may or may not have killed innocent people is still treated kindly and with respect.
