Press Association: Police are prepared to admit that the “stop and search” of 11-year-old twins and a veteran environmental campaigner going to a climate camp protest was unlawful, the high court was told today. The twins were stopped while attending a demonstration against the proposed Kingsnorth coal-fired power station in Kent in August 2008. The energy company E.ON owns the power station on the Medway estuary, but in 2006 sparked a long-running campaign by environmental activists by …