Perhaps you can provide a link to your interpretation Olly.
In relation to Crowley I find this:
Aleister Crowley also made use of the pentagram and in his Thelemic system of magick: an adverse or inverted pentagram represents the descent of spirit into matter, according to the interpretation of Lon Milo DuQuette. Crowley contradicted his old comrades in the Hermetic Order of the Golden Dawn, who following Levi considered this orientation of the symbol evil and associated it with the triumph of matter over spirit. http://kandelic.forumotion.com/t43-history-of-the-pentagram
In relation to the Victorian police in the case I sited, I say judge them by their actions.
