9 . 3 5 .... .. Inv estig ation ▁of ▁cr imes . ▁Ex am ination ▁and ▁identification ▁of ▁prisoners ▁ 8 0 7 9 . 2 - 8 0 7 9 . 3 5 .... Pol ice ▁social ▁work ▁ 8 0 7 9 . 5 - 8 0 7 9 . 5 5 .... Tra ffic ▁control . ▁Tra ffic ▁accident ▁investigation ▁ 8 0 8 1 - 8 0 9 9 ........ .. Private ▁detect ives . ▁Det ect ive ▁b ure aus ▁ 8 1 3 0 - 8 2 8 0 . 7 ........ By ▁region ▁or ▁country ▁ 8 2 9 0 - 8 2 9 1 ........ ... Private ▁security ▁services ▁ 8 3 0 1 - 9 9 2 0 . 7 .... ..... P en ology . ▁Pr isons . ▁Cor re ctions ▁ 9 0 5 1 - 9 2 3 0 . 7 ........ The ▁ju ven ile ▁off ender . ▁Ju ven ile ▁del in quency . ▁Reform ▁schools , ▁etc . ▁ 9 2 6 1 - 9 4 3 0 . 7 ........ Re formation ▁and ▁re clam ation ▁of ▁adult ▁prisoners ▁ 9 4 4 1 - 9 9 2 0 . 7 ........ By ▁region ▁or ▁country ▁ 9 9 5 0 - 9 9 6 0 ........ ... By ▁region ▁or ▁country ▁ ▁H X ▁- ▁Social ism ; ▁Commun ism ; ▁An arch ism ▁▁▁ 1 - 9 7 0 . 9 ........ .... So