MDCM
You should really look into your departments policy and get something in writing. I'm not 100% sure , but I think if you carry under the badge it has to be a department issued weapon. Also check your P.D's policy, if you were to use a non-issued weapon while in preformence of your duty. Some departments won't back you up, because if a law suit arises, the question of who trained you and certified you on the use of that weapon will most likely come up.
You should really look into your departments policy and get something in writing. I'm not 100% sure , but I think if you carry under the badge it has to be a department issued weapon. Also check your P.D's policy, if you were to use a non-issued weapon while in preformence of your duty. Some departments won't back you up, because if a law suit arises, the question of who trained you and certified you on the use of that weapon will most likely come up.