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8 - Police

from Part III - Other Areas of Policy

Published online by Cambridge University Press:  21 October 2026

David Frayman
Affiliation:
London School of Economics and Political Science
Christian Krekel
Affiliation:
London School of Economics and Political Science
Richard Layard
Affiliation:
London School of Economics and Political Science
Sara MacLennan
Affiliation:
London School of Economics and Political Science
Isaac Parkes
Affiliation:
London School of Economics and Political Science
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Summary

Studies of the effects of the police on crime suggest that a 1 per cent increase in local police numbers will reduce local crime by 0.5 per cent. As for the effect of crime on the wellbeing of residents, a leading British study estimated that a 0.5 per cent fall in crime would increase average life satisfaction by 0.0011 points (out of 10). In this chapter we combine these findings, calculating the BCR for one more police officer, using the Treasury approach, which values one extra point of wellbeing for one year at £15,258. The result is a healthy BCR of 12:1.

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  • Police
  • David Frayman, London School of Economics and Political Science, Christian Krekel, London School of Economics and Political Science, Richard Layard, London School of Economics and Political Science, Sara MacLennan, London School of Economics and Political Science, Isaac Parkes, London School of Economics and Political Science
  • Book: Value for Money
  • Online publication: 21 October 2026
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  • Police
  • David Frayman, London School of Economics and Political Science, Christian Krekel, London School of Economics and Political Science, Richard Layard, London School of Economics and Political Science, Sara MacLennan, London School of Economics and Political Science, Isaac Parkes, London School of Economics and Political Science
  • Book: Value for Money
  • Online publication: 21 October 2026
Available formats
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Save book to Google Drive

To save content items to your account, please confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account. Find out more about saving content to Google Drive.

  • Police
  • David Frayman, London School of Economics and Political Science, Christian Krekel, London School of Economics and Political Science, Richard Layard, London School of Economics and Political Science, Sara MacLennan, London School of Economics and Political Science, Isaac Parkes, London School of Economics and Political Science
  • Book: Value for Money
  • Online publication: 21 October 2026
Available formats
×