@article{ref1,
title="Assessing Police Effectiveness--Future Prospects",
journal="British journal of criminology",
year="1987",
author="Chatterton, M",
volume="27",
number="1",
pages="80-86",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="0007-0955",
doi="",
url="http://dx.doi.org/"
}