Paul Ohm is starting a new "very occasional" feature on the Freedom To Tinker blog called You Are Not a Lawyer — "In this series, I will try to disabuse computer scientists and other technically minded people of some commonly held misconceptions about the law (and the legal system)." In the first installment, Ohm walks through the reasons why many techies' faith in the presence of "reasonable doubt" is so misplaced. "When techies think about criminal law, and in particular crimes committed online, they tend to fixate on [the 'beyond a reasonable doubt'] legal standard, dreaming up ways people can use technology to inject doubt into the evidence to avoid being convicted. I can't count how many conversations I have had with techies about things like the 'open wireless access point defense,' the 'trojaned computer defense,' the 'NAT-ted firewall defense,' and the 'dynamic IP address defense.' ... People who place stock in these theories and tools are neglecting an important drawback. There are another set of legal standards — the legal standards governing search and seizure — you should worry about long before you ever get to 'beyond a reasonable doubt.'"