efe-epaBy Imane Rachidi Ruinerwold, The Netherlands

The arrest of the father of a Dutch family found living on a clandestine farm for nearly a decade has led to a complex investigation where abuse, tax evasion, brainwashing and links to a sect worth millions converge.

On Tuesday Dutch police revealed they had found a 67-year-old man known as Gerrit-Jan van D., living with his six adult children, four women and two men, on an isolated farm in a village in northern Holland.