The Mobile Info Team has compiled some info material about fingerprints. You can find them here. This is a summary of it: When you are detected irregularly entering a country of the European Union or you apply for asylum in one, your fingerprints will be taken and sent to a database called “Eurodac”. You are obliged by law to have your fingerprints taken. Your fingerprints will be checked against Eurodac to see if you have applied for asylum before or if you have previously been fingerprinted in another European Union country. Your fingerprints are stored in Eurodac for 18 months after you enter an EU country, then for a further 10 years after you apply for asylum. After that time they will be automatically deleted. Your name, photograph, date of birth and nationality are not sent to the Eurodac database, but may be stored in a national database. For more information click here.