Roger Billingsley
2 published titles
Informers : policing, policy, practice
(Contributor)
1 edition
- ISBN: 1903240077
- Willan
- 2001
- Details
Covert human intelligence sources : the 'unlovely' face of police work
(Contributor)
1 edition
- ISBN: 9781904380443
- Waterside Press
- 2009
- Details
