They are actually in jail now?

Justice is what the courts mete out. It's the result of a trial.

Most of the treatment you get en route to jail, from jail to the courthouse, even in the courthouse prior to the trial depends on actions, perceptions of actions, and anticipation of future actions. The guards or police taking the cops to jail probably didn't think they'd try to make a break for it on assault them. No need for leading them, guns drawn, in leg irons and handcuffs. Oddly, this suspicion of how the cops would behave turns out to have been accurate.

even the mildest of offenders are cuffed when led into the jail sallyport. But specially ones who are charged with murder etc. Fucking pigs! they all are corrupt and protect their own...