@article{ref1,
title="Private Security and Public Policing",
journal="Crime prevention and community safety",
year="1999",
author="Wall, DS",
volume="1",
number="4",
pages="63-65",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="1460-3780",
doi="",
url="http://dx.doi.org/"
}