NYPD The Key is the best promotional school in the business. NYPD The Key offers instructors with years of professional experience, convenient classes, multiple platforms of digital media, LIVE online classes and the ONLY promotional school to offer full college credits. Did you get on the job with just 60 credits, but you need more to get promoted? NYPD The Key is the school for you. Why do double the work? Sign up today to learn more!