&gt; Yes, it is, if the screaming is between you and another person and not addressed at the public.<p>CPC 632 disagrees with you. California is a two-party consent state when it comes to recording of conversations, <i>but</i> it does not require consent of <i>both</i> of the communicating parties if &quot;...the parties to the communication may reasonably expect that the communication may be overheard or recorded.&quot; [0]<p>I expect that you&#x27;d be hard-pressed to find a judge who would buy your theory that someone screaming out in public on the street corner would <i>not</i> reasonably expect that their communication might be overheard... regardless of to <i>whom</i> they were addressing their screams.<p>&gt; Actually the law says &quot;yes&quot;. At least in all the countries in which secrecy of telecommunications laws are in place. ... The general outline has been laid out by the ITU...<p>AFAIK, telecommunications law does not cover shouting-with-one&#x27;s-vocal-cords-without-electronic-assistance-in-public. Do you have court decisions or rulings (that were not later overturned) that say otherwise?<p>[0] <a href="http:&#x2F;&#x2F;codes.findlaw.com&#x2F;ca&#x2F;penal-code&#x2F;pen-sect-632.html" rel="nofollow">http:&#x2F;&#x2F;codes.findlaw.com&#x2F;ca&#x2F;penal-code&#x2F;pen-sect-632.html</a>