Blackstones Policing Manual 2024. Blackstone's police investigators' manual and workbook 2024 are comprehensive study and reference guides for the national investigators' exam (nie), which is taken as part. Blackstone’s for sergeants' and inspectors' exam candidates.
Blackstone’s police sergeants’ and inspectors’ q&a is your essential revision tool for the nppf step 2 legal examination. Blackstone’s police manual volume 1: