Covert human intelligence sources : code of practice.
Scotland.Scottish Government,issuing body.
APS Group Scotland.
"Issued on 11 December 2017".
"Produced for The Scottish Government by APS Group Scotland".
"PPDAS343006 (12/17)".
Includes bibliographical references.
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Description from online resource; title from PDF title page (Scottish Government, viewed July 17 2020)