▁the ▁book . ▁ ▁Syn opsis ▁William ▁Queen ▁was ▁a ▁nearly ▁ 2 0 - year ▁A TF ▁veter an ▁as ▁well ▁as ▁a ▁motor cycle ▁enthus iast ▁when , ▁in ▁ 1 9 9 8 , ▁a ▁" conf ident ial ▁inform ant " ▁contact ed ▁Queen ' s ▁super iors , ▁offering ▁to ▁help ▁place ▁an ▁agent ▁inside ▁the ▁San ▁Fernando ▁Valley ▁chapter ▁of ▁the ▁Mong ols . ▁ ▁Queen ' s ▁work ▁was ▁soon ▁to ▁become ▁the ▁most ▁extensive ▁under cover ▁operation ▁into ▁a ▁motor cycle ▁gang ▁in ▁the ▁history ▁of ▁American ▁law ▁enfor cement . ▁ ▁In fil tr ating ▁the ▁Mong ols ▁Queen , ▁using ▁the ▁alias ▁Billy ▁St . ▁John , ▁successfully ▁in fil tr ated ▁the ▁gang ▁by ▁pos ing ▁as ▁a ▁heavily ▁be arded ▁and ▁long - ha ired ▁motor cy cl ist ▁who ▁liked ▁to ▁drink ▁be er ▁and ▁ride ▁his ▁Har ley - David son ▁motor cycle . ▁ ▁After ▁becoming ▁a ▁full ▁member ▁(" patch ed "), ▁Queen ▁eventually ▁rose ▁to ▁the ▁office ▁of ▁Tre as urer ▁in ▁the ▁organization . ▁As ▁Tre as urer , ▁he ▁had ▁access ▁to ▁evidence ▁of ▁the ▁gang ' s ▁criminal ▁activity ▁and ▁was ▁able ▁to ▁build ▁a ▁case ▁against ▁do z ens ▁of ▁Mong ol ▁club ▁members . ▁Initial ly , ▁Queen ▁was ▁subject ed ▁by ▁members ▁to ▁tests ▁of ▁his ▁fe alty ▁by ▁taking ▁part ▁in ▁and ▁witness ing ▁the ▁tra ff ick ing ▁of ▁dru gs ▁and ▁fire ar ms ▁and ▁the ▁the