The downside of this is anything that detracts from sec arresting and then processing prisoners leads to calls of shitcurity because someone arrested has to spend 20 minutes from getting cuffed to getting sentenced, and then whatever the punishment is. Giving more tools to the detective is a great idea and if their job becomes involved enough maybe even having a 2nd detective on station at 80+ population, but having all of sec play detective, or giving any excuse for the detective to act like security detracts from the uniqueness of the role.