The CPGB-ML have put out an extraordinary video which apparently shows CPB EC member Moz Greenshields trying to bar them from taking part in the Derby Silk Mill Festival today.

Greenshields comes up with an array of bizarre reasons why they should be barred and at one point appears to threaten them with RMT members close by.

Of course, Greenshields and the CPB will have their side of the story but this seems truly bizarre.

Are the CPGB-ML so far off the wall for Greenshields? It would be interesting to know if other political parties and groups were allowed in.

The Greenshields and a clutch of teachers and arty types left the Maoist CPB(ML) for the CPB a number of years ago, and a number have made quite successful careers within the CPB.