1. Bailin, P. and Cole, D.K. (2000), Industry Study 1244: Private Security Services, The Freedonia Group, Cleveland, OH.
2. Bayley, D. (1991), Forces of Order: Policing in Modern Japan, 2nd ed., University of California Press, Berkeley, CA.
3. Bayley, D. and Shearing, C. (1996), “The future of policing”, Law & Society Review, Vol. 30 No. 3, pp. 585‐606.
4. Berling, J. (1982), “Asian religions”, Focus on Asian Studies, Vol. 2 No. 1, pp. 5‐7.
5. Cunningham, W. and Taylor, T. (1985), The Hallcrest Report I: Private Security and Police in America, Butterworth, Boston, MA.