Unaccompanied minors who arrive in Spain encounter many problems and one of them is proving, precisely, that they are under 18 years of age. The first procedure depends on the Prosecutor’s Office and dozens of minors have had to take their case to the Supreme Court for it to recognize that their passports and documents are valid to demonstrate that they were minors when they arrived and that they deserved to be under the guardianship of public administrations . Now it has been the Constitutional Court that has sanctioned these conducts, agreeing with a young man from The Gambia who was not recognized as a minor and who, furthermore, was prevented from appealing because by the time the matter reached the hands of the judges he already had more than 18 years.