IF you could have a say for prisoners to....?

For prisoners to fight in war.I think we should make the prisoners on death row or life without parole fight in wars.They would have a device on them that tracks and can be lethal in a 24 hour time span. If they kill a fellow soldier the device would kill them or if the timer ran out without being manually reset by a higher up.The deal would be to live on house arrest or in a certain area of travel if they choose to serve the army for the remainder of their sentence.I think it is a good idea, less citizens get killed and the prison crowding goes down.