&gt;it is popular to say that it is better to let 100 guilty go free than one innocent be erroneously convicted<p>It is popular to say, but so often I think people don&#x27;t actually believe it once they are taken to task on it.  For example, given evidence that there is a 98% chance someone significantly harmed a child, most people would vote guilty, even though this equates to jailing 2 innocent people to make sure that 98 guilty do get punished.