It's crucial to prevent the police from using illegal means to gather evidence. There's a rather famous legal doctrine about it. https://en.m.wikipedia.org/wik

It's crucial to prevent the police from using illegal means to gather evidence. There's a rather famous legal doctrine about it. https://en.m.wikipedia.org/wiki/Fruit_of_the_poisonous_tree https://en.m.wikipedia.org/wiki/Fruit_of_the_poisonous_tree