&gt; Or rather, as long as it&#x27;s on your computer (say a website downloaded it in the background), you&#x27;re liable. Even if you have 100% solid proof that it wasn&#x27;t your fault, you&#x27;re guilty.<p>Do you have a cite for the law?  What you say isn&#x27;t true for the England; I doubt it&#x27;s true for the US.<p>EDIT: Here&#x27;s the English law.<p><a href="http:&#x2F;&#x2F;www.legislation.gov.uk&#x2F;ukpga&#x2F;2003&#x2F;42&#x2F;part&#x2F;1&#x2F;crossheading&#x2F;indecent-photographs-of-children" rel="nofollow">http:&#x2F;&#x2F;www.legislation.gov.uk&#x2F;ukpga&#x2F;2003&#x2F;42&#x2F;part&#x2F;1&#x2F;crosshead...</a><p><a href="http:&#x2F;&#x2F;www.legislation.gov.uk&#x2F;ukpga&#x2F;1988&#x2F;33&#x2F;part&#x2F;XI&#x2F;crossheading&#x2F;possession-of-indecent-photograph-of-child" rel="nofollow">http:&#x2F;&#x2F;www.legislation.gov.uk&#x2F;ukpga&#x2F;1988&#x2F;33&#x2F;part&#x2F;XI&#x2F;crosshea...</a><p>&gt; Where a person is charged with an offence under subsection (1) above, it shall be a defence for him to prove—<p>&gt; (a)that he had a legitimate reason for having the photograph [F5or pseudo-photograph] in his possession; or<p>&gt; (b)that he had not himself seen the photograph [F5or pseudo-photograph] and did not know, nor had any cause to suspect, it to be indecent; or<p>&gt; (c)that the photograph [F5or pseudo-photograph] was sent to him without any prior request made by him or on his behalf and that he did not keep it for an unreasonable time.