TY  - BOOK
AU  - Harfield,Clive
AU  - Harfield,Karen
TI  - Covert investigation
T2  - Plackstone's practical policing
SN  - 019928377X
U1  - 345.42 
PY  - 2005///.
CY  - Oxford: 
PB  - Oxford University Press, 
KW  - Undercover operations
KW  - Law and legislation
KW  - Great Britain
KW  - Police patrol
KW  - Surveillance operations
N1  - Includes index
ER  -