There's an on-line test/training package for safeguarding here which all staff need to complete. As soon as you've registered you can go to the next page and sit the test, which should take you about half an hour. At the end of it you can print your certificate which then goes onto your file for CPD (so I'm told).
A word of warning: the website is very clunky - I couldn't get it to work on my PC but it worked on Jemma's