If it's gone back to the Immigration Officer, then as per
this information from Erin, it means one of two things:
- The more likely possibility: the Technical Adviser has identified a part of the application that the Immigration Officer has failed to check, or there are flaws in the Immigration Officer's rationale to either approve or decline the application. The Immigration Officer now must perform remedial work on the application and return the updated file to the Technical Adviser as soon as possible.
- If you received a PPI letter at any point during processing of your application, a second possibility exists: the Immigration Officer recommended that the application be declined, and the Technical Adviser has verified the correctness of the Immigration Officer's work. The Immigration Officer must now write the Decline letter and send it out. Note that this possibility can not exist if you never received a PPI letter, as a generic residence instruction (R5.20.5) explicitly states that, in accordance with the principles of fairness and natural justice set out in the Administration chapter (A1), applicants for a residence class visa must be given the opportunity to comment before a decision is made to decline to grant a visa on the basis of any potentially prejudicial information that they are not necessarily aware of.
If the recommendation was that the application be approved, and the application passed the Technical Adviser's checks, the file is
not returned to the Immigration Officer. Instead, it goes to the Support Team, who will then have the responsibility of issuing the Approval letter and eVisa.