US lawmakers on Wednesday pressed Web search firm Google on why its search engine continues to take searchers to pirate sites.

Google’s General Counsel Kent Walker testified before the House committee on Intellectual Property, which is probing websites accused of pirating intellectual property.

Committee chairman Representative Bob Goodlatte blamed Google of falling short in its ant-piracy efforts.

Goodlatte listed a number of accusations that entertainment industries have been labeling against Google, such as the appearance of Google adverts on pirate websites. Walker said that the search firm would welcome new legislation that cut off financial and advertising support for pirate websites, any legislation should not affect the notice-&-takedown system, which is running and working well as a part of the DMCA.

Representative John Conyers said that Google did have success in keeping child pornography out of search results and asked why the search firm could not do the same in case of copyright infringing material.

Walker responded that it is easier to identify child pornography with filters, but it is not that much easy to identify pirated material because so much legitimate, licensed copyrighted material is also available online. Walker said Google needs rightsholders’ help in those cases.