Safety regs aren&#x27;t written for the expected case, they&#x27;re written for the worst reasonable case.  I can easily see how an experiment that involves bacteria cultures could cause problems.  What if his daughter&#x27;s immune system was fighting off strep throat at the time the samples were taken?  How can we be sure that her samples don&#x27;t present a threat to the judges and other people around her experiment?  And that&#x27;s just an example of a merely annoying infectious agent.  She could easily have been carrying small quantities of something much more dangerous - a danger that is clearly amplified by growing them in a culture.<p>There are industry-standard protocols for performing this kind of work, and the school has a clear responsibility to ensure they are followed.