Passage Summary: A judge decided that because the police had no good reason to chase a man other than the fact that he ran away, the gun he dropped during that chase can't be used against him.

Conclusion: The illegal weapon found by the police cannot be used as evidence in the suspect's trial.

Reasoning: The police only chased the suspect because he ran, which does not constitute reasonable suspicion, making the chase illegal and any evidence found during it inadmissible.

Analysis: The judge is operating on a specific legal philosophy: if the initial interaction is 'poisoned' by a lack of justification, everything that follows is also tainted. To justify this conclusion, we need a principle that connects the lack of 'reasonable suspicion' at the start of the chase to the 'inadmissibility' of the evidence found at the end. Look for a principle that acts as a bridge, stating that evidence is only valid if the police had a legal right to be pursuing the suspect in the first place.