Yes you can put raw pork into a slow cooker and the slow cooker will cook the raw pork.
When you use a slow cooker there's no need to cook the raw meat before placing it into the slow cooker because the slow cooker will cook the pork meat as well as any other meats or foods you put into the slow cooker.
I've cooked raw pork and all other raw meats in a slow cooker while I was asleep or when away at work and then when I came back from work or woke up the food was ready to eat.
That's a good benefit of a slow cooker is that you don't need to cook the meat over a stove and watch it.
You can just place the raw pork into the slow cooker and after 8 hours or so the raw pork or any other meat should be done and ready to eat.
The slow cooker makes the pork and any other meats softer to eat and chew as well.