++++ 1 . Freedom of movement for persons - Workers - Provisions of Community law - Inapplicable in a purely internal situation of a Member State ( Regulation No 1612/68 of the Council; Regulation No 1251/70 of the Commission; Council Directives 64/221 and 68/360 ) 2 . Preliminary questions - Jurisdiction of the Court - Limits - Fictitious dispute or request for an interpretation of provisions of Community law which are inapplicable in the main proceedings - Interpretation sought because a provision of Community law is applicable owing to a reference made to it by national law - Jurisdiction to give that interpretation but not to draw the inferences of that reference ( EEC Treaty, Art . 177 ) 3 . Freedom of movement for persons - Derogations - Decisions on the control of aliens - Judicial safeguards - Legal remedies available to nationals of the State in question for challenging acts of the administration - Formal or procedural requirements less favourable to the nationals of other Member States - Not allowed - Suspension of execution of the contested act - Same conditions as to admissibility for nationals of other Member States as for nationals of the State in question ( Council Directive 64/221, Art . 8 ) 4 . Freedom of movement for persons - Derogations - Decisions on the control of aliens - Decision ordering expulsion or refusing the issue of a residence permit - Whether Member States are under an obligation to provide a procedure for appeals to a court of law empowered to adopt interim protective measures - No obligation ( Council Directive 64/221, Art . 9 )