The United Road Transport Union (URTU) men at the centre of a probe into Driver CPC training activities have had their bail extended yet again.
The seven men include general secretary Bob Monks, national officer Mel Thornton and regional officers Lee Pimbley and Mike Billingham.
As part of the operation a warrant was executed at URTU’s offices in Cheadle Hulme.
A spokesman for Greater Manchester Police confirmed they are due to answer bail again on 6 December.
An URTU spokesman said all the men continued to cooperate fully with the investigation.