Although old jail was kinda unfair for cop side, you could easily end up with some millions in your bag within a short time. I used to assist as cop in these long duration jbs and i always end up with a few millions, which it's nice... Cops might be also motivated for money and easy stats. Remember, when the old jail was active, crims were doing jbs, cops were assisting,tryings to stop them. Now, with the new jail, crims are demotivated to jb and obviously, cops don't have a jb to stop. In my opinion, old jail was fine as it was.