An SW9VE has what are called "passive" safeties built into the gun. One is, like you asked, indeed the trigger. Another is the triggers sear bar that engages the pistols firing pin safety only at full trigger pull. The firing pin safety keeps the firing pin in a locked position at all times and only dis-engages upon full trigger pull. Another safety is the slide/ trigger bar disconnect safety. If the slide is out of battery(not shut and locked to the barrel), the slide has a small protrusion that pushes the trigger bar out of connection to the striker sear, rendering the trigger inoperative. All of these safeties work for you in a passive mode. As long as your trigger finger is off the trigger, it is almost impossible to make that pistol fire. You could throw a loaded SW9VE off a cliff with a full mag and a round in the chamber and it still won't go off. Just remember when shooting, "Keep you booger hook off the bang switch" until you are on target and ready to release a round. Simple, easy to use pistol.
