In theory. In practice, it's pretty much nonexistent. There's a long tweetstorm about it here: https://twitter.com/greg_doucette/status/821017618106744833 https

In theory. In practice, it's pretty much nonexistent. There's a long tweetstorm about it here: https://twitter.com/greg_doucette/status/821017618106744833 https://twitter.com/greg_doucette/status/821017618106744833 but the short version is that there are so many exceptions to the exclusionary rule (a.k.a. "Fruit of the Poisonous Tree Doctrine") that it might as well not exist for all the good it's likely to do you.