As licensed Real Estate agents, you will not, nor should you ever, get an answer directly about crime and how safe a particular area is. Obviously, there is so much room for error and liabilities on that one. So, with that said, a GREAT Realtor would explain to you that you should do the research yourself and point you to just a few (of several) great sites out there that can answer your question.
That should help you on your search. Best of luck!
Let me know if I can be of further assistance.
Green Home Realty
If you access the link below to Trulia's Real Estate Guide for Kirby, TX you'll find Crime Statistics under the Kirby Community Info section.
Customer Service Representative