Interesting. That appears to be a difference between common law and civil law. For example, here there is a legal uncertainty what the law says regarding snow-c

Interesting. That appears to be a difference between common law and civil law. For example, here there is a legal uncertainty what the law says regarding snow-covered speed signs. Some people have been ticketed for not following speed limits they reasonably could not have seen without stopping the car and wiping the speed sign clean. Others have been acquitted in almost identical situations. Each court makes a new and independent reading of the law and isn't as affected by what other courts have found. The upside is that new laws aren't created by courts, the downside that legal uncertainties can remain forever.