Collision detection in ASE files?????

Hello again, I was wondering after I have an ASE file loaded and I want to do some collision dectection with certain objects in the file how would I go about that?? Do I have to group certain vertices together and handle collision dectection from there? Or should I group the objects in the 3DS file and just go about the collision dectection (isn’t that the same thing??)?

Please help!!!