&gt; Ignorance of the law is not an excuse<p>Supreme Court says otherwise, if you&#x27;re a cop.<p><a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Heien_v._North_Carolina" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Heien_v._North_Carolina</a>