In order to voice its concerns on Rudd Government's controversial mandatory ISP filtering plan, the search giant Google had gone to the US State Department, including other parties.

Google spokesperson Lucinda Barlow said, "Google is deeply concerned by Australia's plans to introduce a widely scoped, mandatory ISP filtering regime. We have voiced our concerns publicly and with many groups including the US State Department".

Google shared that the system has too broad a scope and is heavy-handed. In order to block content rated Refused Classification (RC) that includes child sexual abuse imagery, bestiality, detailed instruction in crime, sexual violence, violence or drug use and material that advocates terrorist acts, filter is used.

Australian and US officials have discussed ISP filtering, revealed the Communications Minister Stephen Conroy's spokeswoman.

Google has privately as well as publicly aired its views to various parties, including the US State Department, shared Google Australia's Head of Public Policy and Government Affairs, Iarla Flynn.

He added that euthanasia is a crime and the very material which talks about it or promotes it can also be captured within the extent of this filter.

As a matter of fact, the Classification Board decides whether the publications, films and computer games to be sold in Australia are worth selling. But, there is no such category for the internet.