enz ong ' s ▁Ka ich eng ▁era ▁( 8 3 6 - 8 4 0 ), ▁he ▁was ▁sent ▁out ▁of ▁the ▁capital ▁to ▁serve ▁as ▁the ▁pre fect ▁of ▁Su ▁Pref ect ure ▁( <0xE8> <0x98> <0x87> 州 , ▁in ▁modern ▁Su z hou , ▁Ji ang su ). ▁ ▁Su ▁Pref ect ure ▁was ▁a ▁salt - produ cing ▁pre fect ure , ▁but ▁at ▁that ▁time , ▁the ▁reg ulations ▁on ▁the ▁sale ▁of ▁salt ▁was ▁complex , ▁and ▁the ▁administr ators ▁were ▁using ▁this ▁opportunity ▁to ▁em be zz le ▁prof its ▁from ▁the ▁fish erm en ▁who ▁produced ▁salt . ▁ ▁When ▁Lu ▁reached ▁Su ▁Pref ect ure , ▁he ▁met ▁with ▁the ▁fish erm en ▁personally ▁and ▁simplified ▁the ▁reg ulations , ▁allowing ▁them ▁to ▁sell ▁as ▁much ▁salt ▁as ▁they ▁could ▁properly ▁produce , ▁rather ▁than ▁set ▁quot as , ▁and ▁this ▁benef ited ▁the ▁people ▁greatly . ▁ ▁It ▁was ▁said ▁that , ▁as ▁a ▁result , ▁the ▁tax ation ▁the ▁government ▁received ▁from ▁the ▁salt ▁mon opol y ▁at ▁Su ▁Pref ect ure ▁was ▁double d . ▁ ▁Li ▁Sh i ▁the ▁ch an cell or ▁in ▁charge ▁of ▁the ▁mon opol y ▁at ▁the ▁time ▁was ▁im pressed , ▁and ▁he ▁had ▁Lu ▁made ▁the ▁governor ▁( <0xE8> <0xA7> <0x80> <0xE5> <0xAF> <0x9F> 使 , ▁Gu anch ashi ) ▁of ▁Z he xi ▁Circ uit ▁( <0xE6> <0xB5> <0x99> 西 , ▁head qu arter ed ▁in ▁modern ▁Z hen ji ang ,