1 9 8 5 − 8 7 ▁he ▁held ▁a ▁scholar ship ▁of ▁Alexander ▁von ▁H umb old t ▁St iftung ▁in ▁Gött ingen . ▁ ▁From ▁ 1 9 8 8 , ▁he ▁is ▁the ▁head ▁of ▁the ▁Department ▁of ▁Leg al ▁Theory ▁at ▁the ▁Fac ulty ▁of ▁Law ▁and ▁Administration ▁of ▁the ▁J agi ell onian ▁University . ▁ ▁In ▁the ▁ 1 9 8 0 s ▁G iz bert - St ud nick i ▁participated ▁in ▁the ▁work ▁of ▁the ▁Cit iz ens ' ▁Center ▁for ▁Legisl ative ▁In iti atives ▁of ▁Sol id ar ity . ▁ ▁On ▁December ▁ 1 4 , ▁ 1 9 8 1 , ▁the ▁day ▁after ▁the ▁mart ial ▁law ▁was ▁introduced ▁in ▁Poland , ▁Stud nick i ▁together ▁with ▁Kr z ysz to f ▁P ł esz ka ▁and ▁Tom asz ▁Str zel czy k ▁published ▁a ▁legal ▁opinion ▁in ▁which ▁they ▁declared ▁that ▁the ▁mart ial ▁law ▁had ▁been ▁introduced ▁il leg ally . ▁They ▁signed ▁themselves ▁as ▁" L aw y ers ▁from ▁the ▁Law ▁Fac ulty ▁of ▁the ▁J agi ell onian ▁University ", ▁without ▁specifying ▁names . ▁The ▁three ▁pointed ▁out ▁that , ▁according ▁to ▁the ▁then - Const itution ▁of ▁the ▁Polish ▁People ' s ▁Republic , ▁the ▁Council ▁of ▁State ▁could ▁issue ▁decre es ▁only ▁during ▁intervals ▁between ▁the ▁sessions ▁of ▁Se jm . ▁In ▁December ▁ 1 9 8 1 ▁the ▁session ▁of ▁the ▁Se jm ▁last ed , ▁therefore ▁the ▁Council ▁of ▁State ▁did