The father of my eldest son now aged 10 1/2 left when he was 6 weeks old, I have since married and had a second son , Although still in touch with his father for visits etc in holidays ,we moved to Southern ireland 4 years ago , My husband and i would now like to move to australia but are worried about the complications taking my eldest son. His biological father is on his birth cert, not sure what governs my situation Irish English or Aus laws, Its frustrating to think that 10 yeras later he still has control over my familys choices . CAN I TAKE MY SON TO AUSTRALIA?