I lost my passport with Spanish study visa, now I have a new one without a visa and I want to travel in Schengen with my friends during Christmas, the flight company said its okay and that you don’t need to be checked for visa inside Schengen but I am still afraid if the police stopped me, what would happen in worst case scenario? Would they make me pay a finance or consider it as a violation or something? I am tottally legal in Spain and I have my university papers with me + photocopybof my old passport with the visa
I presume you have/had a Spanish national "D" visa. This allows you to travel in the Schengen area as if you had a multi-entry "C" visa for the entire Schengen zone, and days in Spain do not count against the 90/180 limit.
- There are no systematic immigration controls within the Schengen area. There may be random checks.
- You are required to carry valid papers when you cross internal borders, even if there are no checks.
If you have a Permiso de residencia expedido a nacionales de terceros países that should be enough.
Have you reported your lost passport to the Spanish authorities? Have they given you some sort of receipt for the report? What did they say?