Can a Constitutional Court properly consider EU niceties?

The following statement is reported as coming from the head of the Czech Court ruling on the constitutionality of the Lisbon Treaty: Prague - It is a very difficult task for the Czech Constitutional Court (US) to make a decision on the Lisbon treaty because the verdict may influence the whole politics of the European Union, US deputy chairwoman Eliska Wagnerova told on a Czech Television (CT) discussion programme today. (Report linked here). Even a country with a comparatively recent constitution it seems will be unable to have its provisions neutrally examined in face of the steam roller of the all destroying EU menace. We await tomorrow's verdict with interest.