They look at your forms and review your proof of relationship in the initial review. If they need more proof they ask for more proof of relationship and communication. But if they only asked you for the forms, then it means most likely they are satisfied with your relationship and consider it genuine. They must have asked your for updated Police clearance certificate. So if they already asked for updated forms and PCC, then the next step is your background check which is being done right now. Once your background check is over, then will request Re-medical and Passport for Visa. They can request the medical first and upon reviewing your medical results, ask for your passport. OR you can get both Re-medical and Passport request together once your background checks are over.