Hi guys: Thank your information and advice - it is eye opening (esp one of you even managed to dig out an old post 18 years ago). No, I wasn't confusing with the intercalated degree. I think I read the regulations in late 2009-early 2011 so yeah, it is likely that the regulations back then still allows science students to transfer into medicine.
I have a Bachelor of Engineering in materials engineering and MSc 1st Hon in biological sciences, with an overseas registration and work experience as a medical laboratory technician and UK work experience as a genetic technologist. I'm passion about biomaterials but this is not a field that you can find a stable job (because all jobs are basically soly research and development), and I feel that I need a medical degree to be able to fully fledge in regenerative medicine (which again, is a passion, but not a field of solid jobs). Considering my age, I have thought about to become a clinical scientist either in biochemistry or toxicology, but the competition ratio of the admission is even more worse than the medical school, and the pay is significantly less than consultants or even registrars. So I think may be getting into medicine it is a better (although longer) option for me - the admission is less competitive than clinical scientist, the training is more comprehensive and systemetic, and the pay scales upon graduation is better. I'm thinking about ether chemical pathology or occupational medicine as my future specialty, so I can still have a reasonable OK lifestyle. I'm not going to compete for dermatology, and I think I will be too old to get into demanding specialties such as transfusion medicine or transplant surgery (which barely has any personal life due to its emergency nature).