As a police officer, you have to enforce the law. That being said, sometimes there are external circumstances that make things not so black and white. You want to do what's right, but sometimes that means going above and beyond the call of duty. It's important to know that sometimes people commit crimes even if they are not "criminals".
Take, for example, this officer who found a mother shoplifting with her children. She was on hard times and just trying to get something to help feed her six children when she was caught. He knew the were in especially rough shape when he looked down at their feet, and saw something heartbreaking.