The BNP are not doing anything illegal, that's the point.
Lots of their supporters are violent thugs, but then lots of MPs are also crooks it seems.
As for the leaflet:
www.thestraightchoice.org/full.php?q=52#l69
'because it's not racist to oppose mass immigration' - this was basically the Tories 2005 election slogan:
www.amren.com/ar/2005/06/TORYIM1sml.JPG
British Jobs for British Workers - a concept espoused by Gordon Brown
The rest of it is basically Daily Mail rhetoric.
It's disgusting that people want to ban them on the basis that 'well, er, they aren't actually saying anything illegal, but they WANT to, honest, just LOOK at them'. Illiberal nonsense.
This one is slightly more offensive
www.thestraightchoice.org/full.php?q=80#l135
but again, foreigners 'swamping' Britain is straight out of the Daily Mail www.dailymail.co.uk/news/article-479474/East-European-immigrants-cancer-swamp-NHS.html
a photo that could be in the BNP leaflet:
www.dailymail.co.uk/debate/columnists/article-489557/Britain-scarcely-recognisable-50-years-immigrat ion-deluge-continues.html