The gang who plotted to attack an EDL rally in Dewsbury were well armed and intended to kill, according to Assistant Chief Constable Marcus Beale from West Midlands Police.
He said the fact that they were caught was a testament to one traffic officer, who had just as much part to play in anti-terrorism as any specialist.
A gang of six men pleaded guilty to an attack that - but for a piece of good luck - would have resulted in large numbers of casualties.
A plot by six men from Birmingham to attack an EDL rally in Dewsbury was uncovered by "pure chance", police have said.
Six men accused of preparing to carry out an attack on a rally of the right wing group the EDL have pleaded guilty at Woolwich crown court.