Thank you for the opportunity to help you with your question!
The exclusionary rule stops the government from using most evidence gathered in violation of the USA constitution. The exclusionary rule applies to evidence gained from unreasonable search in violation of the fourth amendmend .
If evidence that falls within the scope of the exclusionary rule led law enforcement to other evidence, which they would not otherwise have located, then the exclusionary rule applies to the related evidence found subsequent to the excluded evidence, subject to a few exceptions.
The exclusionary rule is a court-created remedy and deterrent, not an independent constitutional right.
Please let me know if you need any clarification. I'm always happy to answer your questions.