With the invention of tiny cameras and wireless equipments voyeur pornography is gaining ground. History of erotic depictions. Pornography often abbreviated porn is the portrayal of sexual subject matter for the exclusive purpose of sexual arousal. Again, the law covers images of staged acts so long as a reasonable person looking at the image would think it was real or shows harm,  and applies whether or not the participants consented. They present a significant challenge to the commercial pornographic film industry. The law has been more widely used than originally predicted, raising concerns as to whether the legislation is being used for prosecutions beyond the scope originally envisaged by parliament.