▁career ▁sp anning ▁from ▁ 1 8 7 9 ▁to ▁ 1 9 0 9 , ▁he ▁served ▁as ▁a ▁police ▁inform er , ▁agent ▁provoc ateur , ▁officer ▁and ▁the ▁Head ▁of ▁Ok h ran a ▁foreign ▁service ▁based ▁in ▁Paris . ▁Born ▁to ▁a ▁Jewish ▁family , ▁he ▁was ▁later ▁bapt ised ▁and ▁at ▁the ▁end ▁of ▁his ▁career ▁was ▁awarded ▁the ▁rank ▁of ▁Act ual ▁State ▁Council or , ▁which ▁gave ▁him ▁the ▁rights ▁of ▁nob ility . ▁ ▁Early ▁life ▁ ▁Ar к adi y ▁Hart ing ▁was ▁born ▁Ah aron ▁H ack el man ▁() ▁ 2 9 ▁October ▁ 1 8 6 1 ▁in ▁Pin sk ▁( now ▁Bel arus ), ▁to ▁a ▁Jewish ▁family . ▁In ▁ 1 8 7 9 ▁he ▁became ▁a ▁student ▁in ▁Saint ▁Petersburg . ▁ ▁Police ▁Inform er ▁in ▁Russia ▁ ▁In ▁Saint ▁Petersburg ▁H ack el man ▁joined ▁the ▁under ground ▁cell ▁of ▁a ▁revolution ary ▁terror ist ▁organisation ▁Narod n aya ▁Vol ya ▁and ▁be fri ended ▁many ▁revolution aries , ▁including ▁Vladimir ▁B urt se v , ▁future ▁counter - int elligence ▁champion ▁of ▁the ▁Russian ▁revolution aries . ▁At ▁about ▁the ▁same ▁time , ▁H ack el man ▁was ▁rec ru ited ▁by ▁Ok h ran a ▁to ▁sp y ▁on ▁activities ▁of ▁fellow ▁revolution aries . ▁Information ▁obtained ▁from ▁him ▁led ▁to ▁a ▁number ▁of ▁arr ests , ▁and ▁some ▁fellow ▁revolution aries ▁became ▁susp icious . ▁According ▁to ▁the ▁archive ▁of ▁the ▁Paris ▁Ok h