The European Joint Aviation Authorities eventually opted for making the check pilot responsible for CRM skills assessment. Along the way, several options were considered; NOTECHS, a version of LOSA, or even special tests for CRM skill demonstration.
Eventually, it was decided that CRM skills should not be evaluated outside of the pilot´s flying environment (we believe quite rightly), and such skills, or behavioural markers should only be assessed during flight checks.
Thus, the problem was apparently solved. However, no provisions were made for the training of check pilots in CRM assessment, and no special training other than required in the ATP license syllabus was devised.
Cantó, J. M.
(2005). Developing Pilot Skills in CRM Assessment: An Effective Tool for the Check Pilot. 2005 International Symposium on Aviation Psychology, 114-114.