It will make possessing "extreme pornography" - defined as any "extreme image" produced "solely or principally for the purpose of sexual arousal" - illegal.
The Government defines an "extreme image" as any "grossly offensive, disgusting or otherwise ... obscene" moving or still depiction of someone any "reasonable person" would think real being sexually injured or engaging in sexual activity with an animal or corpse.
Films given an official classification are exempt from the new law, meaning portrayals of such extreme activity by actors will be allowed on screen. However, imitations by characters on paper will not enjoy such an exemption.
The second is the Coroners and Justice Bill, which is currently passing through Parliament. It will introduce a similar law banning the possession of any image involving sexual activity and children. For the purpose of the law, an image is said to contain a child if "the impression conveyed ... is that the person shown is a child".
The comic book campaigners claim that if the new rules are interpreted harshly, their hobby could be criminalised.
In a statement, comicshopvoice.co.uk, a comic fans' website, said of the rules outlawing sexual violence: "Isn't that how Batman, Punisher, Judge Dredd get anything done?