No-one has been refused a British passport since face-to-face interviews were introduced, it was revealed.
The Home Office brought in compulsory interviews for first time applicants in an attempt to stem fraudulent passport applications.
Figures released under the Freedom of Information Act showed that 38,391 interviews have been held since their introduction last May to the beginning of this month.
Of those, 222 were referred for further investigation, and are now in various stages of investigation by a specialist fraud department.
But none of the cases has led to a passport application being declined.
Reasons for further investigations could include undisclosed details over who counter-signed an application, said a spokesman for the Home Office's Identity and Passport Service (IPS).
"Face-to-face interviews are a major tool in deterring and preventing fraudsters set on hijacking other people's identities," he said.
"They are there to stop such people from making a passport application in the first place.
"Fraudulent applications are usually detected at earlier stages in the application process meaning an interview will not be arranged," he said.
"IPS prevented some 6,500 fraudulent passport applications last year, and is committed to reducing this even further."
