That's inline with what Trading Standards have told me - the liability does not stop with the retailer. In the case of e-bikeshop modifying Haibikes, Raleigh UK, WinoraGMBH, and Accell.BV may also be liable as they have been fully aware of e-bikeshop promoting and selling modified e-bikes for over a year.

& what do Trading Standards say about the allegation that justebikes are selling S-Pedelecs & misinforming their customers regarding how easy it is to register them???

I would assume that once someone buys one and finds he cannot register it then James will just give them their money back.