Binned maps of linear degree of polarisation (in %) in NGC 1068 with Cnt K2. These maps were created using all available raw images for first panel, only the 60% of the frames outside the 15−75° red zone of Fig. C.2 (last two series of points) for second panel, and only the first series of points (40%) within the red zone for the third panel. Third panel: binned version of maps shown in Fig. 4.