▁the ▁United ▁Kingdom ▁at ▁Cambridge ▁University , ▁where ▁he ▁read ▁law ▁at ▁St ▁C ath ar ine ' s ▁College . ▁He ▁was ▁then ▁called ▁to ▁the ▁bar ▁at ▁the ▁Inner ▁Temple ▁in ▁London , ▁and ▁returned ▁to ▁Singapore ▁to ▁practice ▁law . ▁ ▁Career ▁B ark er ▁pract ised ▁law ▁in ▁Singapore ▁from ▁ 1 9 5 6 ▁to ▁ 1 9 6 4 ▁at ▁the ▁law ▁fir ms ▁Br add ell ▁Brothers ▁and ▁Lee ▁& ▁Lee . ▁He ▁was ▁persu aded ▁to ▁enter ▁politics ▁in ▁ 1 9 6 3 ▁by ▁Lee ▁K uan ▁Y ew . ▁ ▁B ark er ▁was ▁elected ▁a ▁member ▁of ▁the ▁Singapore ▁Legisl ative ▁Assembly ▁in ▁ 1 9 6 3 , ▁representing ▁the ▁constitu ency ▁of ▁Tang lin . ▁He ▁continued ▁to ▁represent ▁the ▁constitu ency ▁in ▁the ▁Singapore ▁Parliament ▁to ▁ 1 9 8 8 . ▁ ▁B ark er ▁served ▁as ▁the ▁Spe aker ▁of ▁the ▁Legisl ative ▁Assembly ▁from ▁ 1 9 6 3 - 1 9 6 4 . ▁In ▁ 1 9 6 4 , ▁he ▁was ▁appointed ▁the ▁Minister ▁for ▁Law , ▁and ▁continued ▁to ▁hold ▁that ▁post ▁until ▁ 1 9 8 8 . ▁As ▁Minister ▁for ▁Law , ▁he ▁draft ed ▁the ▁Pro clam ation ▁of ▁Singapore ▁in ▁ 1 9 6 5 , ▁announ cing ▁Singapore ' s ▁separation ▁from ▁Malays ia . ▁During ▁his ▁ 2 5 ▁years ▁in ▁Parliament , ▁B ark er ▁also ▁served ▁as ▁the ▁Minister ▁for ▁National ▁Development ▁( 1