Comparison of the KS laws derived from HCN(1–0) in NGC 1068 with those obtained in different populations of galaxies for a range of spatial scales: global measurements (around a few kiloparsec) of the disks of SFGs and (U)LIRGs (García-Burillo et al. 2012), ≃0.3−1 kiloparsec-scale regions of the disks of nearby SFGs (Murphy et al. 2015; Usero et al. 2015; Bigiel et al. 2016), and 0.1−0.2 kpc size regions in the disk of M 51 (Chen et al. 2017; Viaene et al. 2018; Querejeta et al. 2019). For the sake of a better comparison with the reference sample, the scatter plots for NGC 1068 (magenta circles and isodensity contours) are displayed for three spatial resolutions: 56 pc (left panel), 100 pc (middle panel), and 700 pc (right panel). The scatter plot for M 51 at 100 pc resolution is displayed by the green circles and isodensity contours. The open squares stand for the median values of the distributions in NGC 1068 and M 51.