I've been lurking here for a little while and feel compelled to chime in here (hating myself for it all the while).
The predominant argument appears to be between Lucianarchy and Hannibal. Luci is trying to establish two claims:
(1l) Police use psychics and
(2l) Psychics provide useful information to police.
Hannibal has countered these claims, citing his personal experience in the UK police force, with the assertion that (1h) police in the UK *never* contact psychics, but will respond to the information they volunteer as they do with any information received by the public.
Luci offers two references to support these assertions:
(a) a report in the press (the BBC article);
(b) the other a article written by a British police about how a psychic was helpful in a particular case.
(a) is somewhat self-contradictory, noting that Scotland Yard has and does use psychics (and even keeps a database of 'registered' psychics); but also that South Wales Police do not contact psychics---presumably two separate agencies with two separate policies. This seems to support (1l) and refute (1h), though it isn't clear whether SY actually contacts psychics without them offering information. Other research, such as Wiseman, West and Stemman's (1996) article in the
Skeptical Inquirer, "Psychic Crime Detectives: a new test for measuring their successes and failures", actually seems to support Luci's assertion that Police Departments worldwide will use psychics to provide tips in
cases:
<blockquote>
Many psychics claim to be able to help the police solve serious crime. Recent surveys suggest that approximately 35 percent of urban United States police departments and 19 percent of rural departments (Sweat and Durm 1993) admit to having used a psychic at least once in their investigations. In addition, Lyons and Truzzi (1991) report the widespread use of psychic detectives in several other countries including Britain, Holland, Germany, and France.
</blockquote>
(surely Lucianarcy won't object to the use of the SI when it is supportive?)
(b) is anecdotal evidence supplied by a single individual regarding the efficacy of psychic help. By itself, this contributes little to the debate.
Hannibal's assertion about the UK police not contacting psychics (contradicting (a)) is also anecdotal. Sorry Hannibal, but "FACTS derived from PERSONAL EXPERIENCE" are anecdotal to an independent observer without external corroboration.
In summary: very little can be confidently concluded from this debate. Not so confident conclusions I've come to are:
(1) Police worldwide have passively used psychics to provide tips in active investigations. Some have most likely actively used them (sought their help).
(2) As with the civilian population, some individual police officers/detectives/etc. believe psychics are helpful or have been helpful, while others think they are charletans.
(3) No reliable data exists that confirms the utility of psychic tips in criminal investigations.
(4) No legal system, anywhere (in the West), will accept psychic tips as evidence, or even as legally actionable information (e.g., to obtain a search warrant).
I'll spare the board from personal opinions of the principal participants in this debate (either good or bad).
Cheers.
[Edited to correct formatting]