(Also use consts so you don’t make typos - or so your typos are at least consistent :)
The app itself appears to be written in Ruby (the github link is posted elsewhere in the comments), and looking at the image included in the article further down I assume the code is from a Go app that takes the Ruby app's logs and generates some statistics.
There u go ,crazy machine learning algorithm :O
Besides, how many innocent verdicts for these crimes can there be? Prosecutors don't care near as much about pot possession as cops do (because they're not the ones getting the federal money), and they plea out possession when there's any doubt about convicting on more serious charges.