“…As such, we felt it appropriate to comment on Rob's proposed TBH model. 1 In attempt to garner interest, we invited students from non-medical courses, including engineering, computing and maths; however, some primary schools required proof of an enhanced Disclosure and Barring Service (DBS) certificate for each volunteer, so non-medical students could not participate at these schools. Medical schools apply for DBS certificates on behalf of their students, and they cannot be applied for by individuals.…”