It goes without saying that Nick Griffin is a hateful, slippery character. Unfortunately he and other BNP members are getting good at running rings around journalists and others who want to ask them questions.

To help anyone wondering what to ask the BNP leader when he appears on the BBC's Question Time on Thursday, I've prepared, with the help of my co-bloggers, a list of 20 questions that should be asked of the BNP and its leadership. So without further ado...

1. Which parts of Hitler's book Mein Kampf does Nick Griffin agree with, considering that he is on record as stating that he has "learned a lot" from it ?

2. Specifically which policies and ideology of the historical German Nazi party does the BNP as a whole renounce or support, considering the confirmed admiration for Hitler and his organisation among several senior members of the BNP?

3. What is the BNP's official position on the Holocaust, given Griffin's claim that "I am well aware that the orthodox opinion is that 6 million Jews were gassed and cremated and turned into lampshades." Does he not believe the 6 million figure?

4. Griffin has been pictured with and rubbed shoulders several times with high-ranking members of the American Ku Klux Klan. Does he agree with their vision of Aryan supremacy? Would he renounce their policies and ideology?

5. Would Griffin, Andrew Brons and all other members of the BNP be willing to submit to multiple independent DNA tests to confirm that none of them have any non-European ancestry?

6. How will a BNP government ensure the safety of Britain's female population, considering that a senior member of the BNP (Nick Eriksen) has been on record as stating that he believes "rape is simply sex. Women enjoy sex, so rape cannot be such a terrible physical ordeal."

7. Does Griffin agree with the senior member of the BNP who is on record as stating that he supports forced euthanasia of people with disabilities and others deemed to be "a waste of time, money and resources", including the very old and (especially) newborn babies?

8. Griffin said previously that he believed white and black people could not live together. Is he still against mixed-race relationships? How will he stop people from having them?

9. What would be the status of British citizens (both minors and legal adults) who are the children of one white/Caucasian parent and one non-white parent?

10. The BNP's constitution says that it wishes to restore "the overwhelmingly white makeup of the British population that existed in Britain prior to 1948". Does that still remain his aim?

11. Does he still believe in voluntary repatriation of ethnic minorities in the UK? What if they don't want to move to another country?

12. Should ethnic minority Britons have any lesser rights or legal status than white Britons? Given the choice between a white Briton and a non-white Briton for a job – would you choose the white Briton because of their race?

13. Non-white Britons represent Britain internationally in sporting events and academia and in other fields all the time. Yet you say these people are not "British". Would you deny them the chance to represent the UK?

14. Would you be OK with a mixed-race or non-white Briton being prime minister of Britain?

15. Do you think white people are genetically more intelligent than black people?

16. During an interview in May 2009, Griffin clearly stated that he would use the current Saudi Arabian policy on non-Islamic places of worship as a guideline for official policies towards non-Christian places of worship under a BNP government, thereby effectively turning Britain into a Christian version of Saudi Arabia. Is that still the case?

17. Does he have any problems with Christians converting to any other religion?

18. Will the BNP's proposed policies in relation to non-white British citizens also be applicable to Jewish British citizens? If the answer is "Yes", then all further queries in relation to non-white British citizens should be interpreted to also include Jewish British citizens.

19. During its various references to Britain's historical participation in the first and second world wars, why does the BNP never mention the fact that millions of non-white soldiers from the former British Empire fought alongside white/Caucasian soldiers on the side of the Allied powers in both world wars, including 2.5 million volunteer soldiers from the Indian subcontinent during the second world war?

20. How will a BNP government ensure the safety and welfare of Britain's disabled, considering that a senior member of the BNP (Jeffrey Marshall) has been on record as stating that "We live in a country today which is unhealthily dominated by an excess of sentimentality towards the weak and unproductive. No good will come of it", in response to the death of David Cameron's baby in spring 2009?

Think I've missed something out or you can do better? Let me know below.