A sponsoring parent (see SET7.2) must be able to showthat he/she has been solely responsible for exercising parental care over thechild for a substantial period.If the sponsoring parent and child areseparated, the child will normally be expected to have been in the care of thesponsoring parent’s relatives rather than the relatives of the other parent. Anapplication should normally be refused if the child has been in the care of theother parent’s relatives and the other parent lives nearby and takes an activeinterest in the child’s welfare。
The following factors should be considered in assessingsole responsibility:
Are the parents married / in a civil partnership?
If the parents’ marriage / civil partnership is dissolved, which parent was awarded legal custody, which includes assumption of responsibility for the child?
Where there is a custody order the ECO should take care to ensure that the issue of a settlement entry clearance to the child will not contravene the terms of the custody order. See list for countries whose custody orders can be recognised as valid in UK (copy is available on this guidance page)。
Does the marriage / civil partnership subsist, but the parents do not live together?
If the sponsoring parent migrated to the UK, how long has the sponsoring parent been separated from the child?
If the sponsoring parent migrated to the UK, what were the arrangements for the care of the child before and after the sponsoring parent migrated?
If the sponsoring parent migrated to the UK, what has been / what is the sponsoring parent’s relationship with the child?
Has the sponsoring parent consistently supported the child, either by: direct personal care; or by regular and substantial financial remittances?
By whom, and in what proportions, is the cost of the child’s maintenance borne?
Who takes the important decisions about the child’s upbringing, for example where the child lives, the choice of school, religious practice etc?
大意是孩子父母中的一方，在一定长的时间跨度内，独自对于孩子负有完全的亲代责任(he/she has been solely responsiblefor exercising parental care over the child for a substantial period)。注意这句话中的两个重点：1)对于时间跨度的要求；以及2)对于“完全”的定义。