How many prisoners do you transport in your patrol car at one time? I seldom transport more than one. Often when I have more than one prisoner, I get a second unit to transport the second prisoner. Having the prisoners in separate vehicles makes them easier to control because you only have to deal with one person at a time. It also makes it easier to verify the ownership of any drugs, weapons or other contraband found in the vehicle after they leave.
The rear seat of many patrol cars is now partitioned off so that the whole back seat area is cut off from the whole front seat area. I would suggest there are two options that might make some sense. Partition off only the passenger side of the rear seat to carry one prisoner in a plastic bucket seat. That keeps the prisoner separate from the officer and by it being on the passenger side it allows easy entry and exit for the prisoner.
The other half of the rear seat can be used as a storage space for the officer to carry ready gear. This is a good place to store the weapons. The patrol rifle and patrol shotgun can be carried in a separate little armory area. This makes it more secure than leaving it in the passenger compartment. Units with two officers could even hold two patrol rifles. Other ready riot gear could be held there two, like a tactical vest, extra magazines, and gas masks could be stored there too. Different vehicle configurations can be helpful, that’s what the SGT Says.