If you look closely the extended mag police version gun is the top gun in the picture (model 81) with the extended mag out of the gun.
Looks like a former Los Angeles County version.
Look at the bottom gun in the picture. A model 8. A much more handsome specimen, at least to my eye and touch...
Ah yeah, should have looked at the forearm. Still new to these. Knew there was one around, tho.