Source:

The Victoria Police Gazettes are available through both Ancestry and Find My Past for the dates 1855, 1864-1924. However, browsing the dates through Ancestry it is clear there are gaps, i.e. 1866-1867, which are key years for my Victorian research. I located the missing years in the microfiche collection held by the University of Melbourne (UniM Bail MIC/f 4865d). The missing years should also be available through the State Library of Victoria.