http://www.seattlehempfest.com/420.php
Maybe do your research
As a matter of efficient crowd control, police and university authorities generally tolerate the short-and seldom dangerous-yearly public statements by pot-smokers. One smoker said that not only is 4/20 a time to stand proud for marijuana, but also a day of tolerance: "It's a day of tolerance and the authorities let us 'hippies' have our fun and smoke pot." Another said in proud defiance: "Pronounced 'four twenty,' it is a day of police non-enforcement of drug laws in certain areas, and a day to celebrate a ritual that has survived thousands of years, only to be condemned by our American government... It's one of the most liberating feelings to smoke pot in public and not be afraid of being caught."
They tolerate it....and.... in CERTAIN area's
It is not legal to smoke a bolw right in front of an officer in every single city in the US
