drugs offences after a 'pre-planned operation' by cops in Cardenden this morning.Earlier we told how at least four marked police vans had been spotted on Dundonald Park in Cardenen, near Lochgelly, Fife.Emergency services - including a National Risk Ambulance and specialist forensics officers - were sent to the scene as part of the planned operation.At around 9am officers acting on a warrant carried out a search of the house.A 37-year-old man and a 49-year-old woman have now been arrested and