Serbian biometric passports were introduced in 2008. Citizens can not have multiple Serbian passports at the same time. Besides serving as proof of identity and of citizenship, it facilitates the process of securing assistance from Serbian consular officials abroad, if needed. Passports are issued and renewed by the Serbian Police on behalf of the Ministry of Internal Affairs or, if the citizen resides abroad, by the Serbian diplomatic missions. Serbian passport ( Serbian: Пасош Србије, romanized: Pasoš Srbije) is the primary document of international travel issued to nationals of Serbia.