I recently picked The New Jim Crow: Mass Incarceration in the Age of Colorblindness for my book club (and it's very interesting - you should read it) and then I came by this: JAY-Z’S 99 PROBLEMS, VERSE 2: A CLOSE READING WITH FOURTH AMENDMENT GUIDANCE FOR COPS AND PERPS by Caleb Mason (which is also interesting [plus entertaining] - you should read it).
They both reference similar and key Supreme Court decisions which have led to exactly what cops can and can't do regarding the 4th Amendment.