Erection law

A law that is so stupid and profoundly inadequate but remains in existence because it gives lawmakers an erection when considering its monetary benefits. Erection law. Look for it in your textbooks.

Oh, you're a sociopath and want to act as your own defense in court? Sure! Erection Law!

Or basically all laws that involve a plea bargain that gives you an inadequate sentence to an intolerable offense. See: manslaughter.