My Danish visa application was sent to the Danish Immigration Bureau for processing. Why?

Danish Embassy replied: There may be many reasons for this situation. Each visa application is independently evaluated by the visa officer. According to the personal data of the applicant, the embassy will decide whether to issue the visa directly to the applicant or transfer the application data to the Danish Immigration Bureau for further investigation (such as verifying the Danish inviter, relatives/friends, previous stay/detention in Schengen countries, illegal immigration tendency, etc.). )