Parental responsibility (PR) is defined in section 3(1) of the Children Act 1989 (ChA 1989) as ‘all the rights, duties, powers, responsibilities and authority which by law a parent of a child has in relation to the child and his property’. ChA 1989, s 2 sets out the circumstances in which parents have PR. The mother of the child always has PR. ChA 1989, s 4 deals with acquisition of PR. The father of a child will acquire PR either by virtue of being married to the mother at the time of birth (ChA 1989, s 2(1)); by his registration as the child’s father (ChA 1989, s 4(1)(a)); or by a parental responsibility agreement (ChA 1989, s 4(1)(b)). Finally, the father shall acquire PR if the court on his application orders that he should have PR. The phraseology used in ChA 1989, s 4(1)(b) is an agreement between ‘the father’ and ‘the child’s