 Referral strategies to be assessed will include: referral to research team by GP Practice Nursediabetes specialist nurse, regular GP practice database searches, via pathology lab following raised Hba1c Initial visit I hour: Participants will meet with a member of the research team who will obtain consent and collect baseline blood samples, demographic and QoL data. Participants will be randomised to either the intervention or control arm using a computer generated randomisation schedule. For participants in the intervention arm the blood samples will be analysed at the Royal Devon Exeter National Health Service Foundation Trust RDE NHS FT Biochemistry Department for HbA1c, C-peptide and islet autoantibodies GAD, IA2 and ZnT8 with DNA extracted and stored for genetic testing if appropriate. These blood results will then be immediately incorporated into the ODS for feedback to Clinicians and participants with recommendations that appropriate national guidelines for the ODS diagnosis e.g. NICE guidelines for Type 1 or Type 2 diabetes are followed. For participants in the control arm their current clinical features will be recorded and their blood samples will be stored for future analysis. At the end of their involvement in the study, both recorded clinical features and results from stored blood samples will then be and incorporated into the ODS for feedback to both clinicians and participant. 