Hi, Tom,
How are you doing? I received your last letter concerning our school's public safety. I have to say that though we are located in a comparatively unsafe neighborhood, our school does make a lot of effort on public safety. In the past few years, our school has doubled the number of security guards. The school also offers escort service with the safety patrol. Sign-in is required for every visitor. Our teachers also give security lessons which teach us how to deal with emergency.
Thank you for your concern, but I really feel safe in my campus. Please rest assured. Looking forward to hearing from you again.
Yours
Hua Li