A website has been established to fact check One Nation's policies and the claims of its leader Pauline Hanson in relation to Islam.

Fact Check One Nation opened its account by posting rebuttals to One Nation's key policies relating to Islam and immigration, including establishing a royal commission into Islam, banning the burqa and stopping immigration from Muslim countries.

In rebutting the policies, the group looked at the practicalities and the legalities of One Nation's proposals.

Sydney-based lawyer Mariam Veiszadeh, herself a Muslim, told SBS News she had driven the formation of the group of "everyday Australians" - both Muslim and non-Muslim - to counter Ms Hanson's "vitriol", "lies" and misinformation.

"Effectively, we're hoping to counter the fear with the facts," she said.

"I think One Nation's supporter base is quite significant and therefore I don't think they can be ignored or ridiculed in a way some have sought to do.

"Therefore the most powerful way to tackle the misinformation and xenophobic proposals is to counter it with facts."

Mrs Veiszadeh said the group had found many of her policies were "either already accounted for in the law" or were based on "gross exaggerations".

"Some [policies] are outright baseless and verging on being insidious or comical," she said.

In response to Ms Hanson's call to ban the burqa and the niqab in public places, Fact Check One Nation replied: "The 'burqa' is not worn in Australia".

"The 'niqab' is worn by a tiny percentage of women who exercise their free choice to wear them and surely women are entitled to wear as little or as much as they choose," the group said.

"Such a ban would be potentially unconstitutional."

Among the other One Nation policies the group investigated was the party's proposal to ban Muslims from immigrating to Australia and to stop Muslims from being sworn in to parliament on the Qur'an.

They found both of the proposals could be potentially unconstitutional.

In response to One Nation's calls to ban halal certification and to investigate its links to terrorism, the group responded, a "senate inquiry concluded that there is no direct link between halal certification and terrorism".

"Providing halal to prisoners or members of the Defence Force due to religious beliefs is a human rights obligation, no different to asking for Jewish kosher meals," the group said.

"[The] 'religious tax' argument is a myth."

The group also hit out at One Nation's proposal to install surveillance cameras in all mosques and Islamic schools.

"This would constitute an an unacceptable invasion of privacy and could potentially be in breach of the Privacy Act (1988)," the group said.

"[It is] highly likely an attempt to do this would be inconsistent with the restriction on the making of laws 'prohibiting the free exercise of any religion' in section 116 of the Constitution."

Other policies - such as forcing people to show their faces for identification photos, having a lengthy jail term for people practising female genital mutilation and preventing Muslims who might be in polygamous relationships from collecting Centrelink payments - were already covered under Australian law, the group found.

Mrs Veiszadeh said the group now planned to turn its attention to other One Nation policies and statements by Ms Hanson that were potentially damaging to the broader Australian community.

She said she had rushed to get the website launched on Monday because Ms Hanson was due to feature on the high-profile ABC program Q&A on Monday night.

She said it was important to have facts ready to challenge any "lies or misinformation" Ms Hanson may employ.