Methos5000
Mongoose
Officially under e-mines it states it attacks all targets within the blast radius, it doesn't target them. So within the rules its allowed. It just doesn't make any real sense. As others have stated the Narn (or any other e-mine race) would know a rough blast radius of their e-mines. I doesn't make any sense to use it within range of your own ships.
Now granted with the new Narn e-mines I don't think you will see many e-mines being dropped on their own ships, possibly the same with the Brakiri having DD e-mines. Since pak'ma'ra have single and double damage e-mines plus built in redundancy they might use them alot with little worry about their own ships. The Gaim could be the same way, having single damage their is less cause for hitting your own ships as long as you nail the enemy as well.
Now granted with the new Narn e-mines I don't think you will see many e-mines being dropped on their own ships, possibly the same with the Brakiri having DD e-mines. Since pak'ma'ra have single and double damage e-mines plus built in redundancy they might use them alot with little worry about their own ships. The Gaim could be the same way, having single damage their is less cause for hitting your own ships as long as you nail the enemy as well.