RT Book T1 Assessing the expandable side-handled baton T2 Police research series JF Police research series A1 Kock, Egmont A1 Kemp, Tim A1 Rix, Bernard A2 Kemp, Tim A2 Rix, Bernard LA English PP London PB Home Office Police Department YR 1993 ED 1. publ. UL https://krimdok.uni-tuebingen.de/Record/1112352376 SN 1-85893-284-X