Why it is so important to both police and the public to have the exclusionary rule?

The Exclusionary Rule is important to both police and the public because it lays out a clear guideline for action during a police action. Having this rule in place limits the responsibilities that are applied to the officer by stating what they are responsible to gather or not gather during their investigation of a scene. For the public the officer is prevented from illegally conducting search and seizure of a property.