Don't forget you have to write your arrow direction choices to a database, so that we can prove that over time it was random. And that on August 18th at 10:27,

Don't forget you have to write your arrow direction choices to a database, so that we can prove that over time it was random. And that on August 18th at 10:27, it showed "left" when the person-of-interest (we don't call them suspects anymore) went through the line. This would require a couple of reports be written against the database.