Waiting for the lock to open (where those towers are) at Minden. Eventually after a long wait we were told to move to another lock that would take us in a circuitous route to where we wanted to go so off we went. We heard later that, un-beknown to us, we had had a lucky escape. Three weeks before, the Wasserpolizei had fined another 'red ensigned' pleasure boat for being over 15m. long and for being here. They would not let him move until he paid for a pilot to accompany him but more of that later.