One Nation New South Wales leader Mark Latham slams Al Jazeera hidden camera ...

One Nation New South Wales leader Mark Latham has slammed Al Jazeera for carrying out a 'hit job' and 'interfering with democracy' - saying Australian journalists would be jailed in Qatar for doing the same thing.

Mr Latham, who was elected to the NSW parliament on Saturday, criticised Al Jazeera - a government-owned news organisation based in Qatar - for its hidden camera documentary: 'How To Sell A Massacre'.

The investigation detailed One Nation's efforts to receive millions of dollars in donations from America's National Rifle Association.

Mr Latham said Australian journalists would be severely punished if they were caught deceiving Qatari politicians.

Scroll down for video 

'They'd lock them up and throw away the key. That's how they do it in the Middle East,' he told Daily Mail Australia.

'Fancy them lecturing someone on guns and violence.' 

'If you're recording someone, you let them know the tape is running. This must've cost $1million to pay this bloke and for all the costs associated with it - all of it on the basis of lies and deception.'

Mr Latham said Al Jazeera had interfered with Australian politics and threatened democracy.

'That's the poison that's been placed here,' he said. 

'They've planned to target One Nation and destroy them... It's hard to get your head around it - to be doing this for over three years.

'At it's core it's a shameful display.' 

The documentary revealed that One Nation members plotted with the National Rifle Association to target women and 'vulnerable people'.

Secret recordings taken by Al Jazeera journalists showed One Nation chief of staff James Ashby discussing how to promote guns to Australians.

'It's like Vegemite. You don't put a f**king bundle of the s**t on your toast,' Mr Ashby said.

'A light smear at first, get them used to the flavour. Part of it will be let's start looking at women's shooting range programmes, self-defence programmes, whatever those things might be.

'Start re-empowering women or vulnerable people.'

In the second part of the Al Jazeera investigation, One Nation's Queensland leader Steve Dickson compared winning the balance of power in parliament to holding a gun to the government's head.