Key legal question
Whether the enforcement order of 23 April 2003 could be challenged despite the final withdrawal decision of 11 October 2002.
Extracted holding
The enforcement order could be reviewed only as to its own legality and constitutionality; the final withdrawal decision itself could not be reopened.
Extracted reasoning
A measure that merely executes a final decision cannot be attacked again as to the merits unless it imposes new rights or duties. Only constitutional objections to the execution measure, or claims that the underlying decision is void or obviously no longer exists, remain admissible.