CR001 wrote:Naturalisation or child registration, is British otherwise than descent.
Child registration is more complicated than that. If a parent (as defined by the British Nationality Act 1981) is British when the child is born, the child will be British by descent unless the child meets a residential qualification. The principle is that these latter cases (Section 3(2) and rarely 3(1)) are merely delaying the loss of Britishness down the generations away from the UK.
Registration of bastards born overseas under Section 3(1) is a curious anomaly - they seem to more British than if they had been legitimate! However, such registration has been refused on the grounds that the child's future did not seem to be in the UK. Possibly applicants in future cases will be told to apply under Section 4G.
For registration routes that are open to both adults and children, a disability in the manner of transmission is being overridden, and the place of birth or Crown service rules apply as for automatic transmission.