I wouldn't know about a specific D&T PGCE, as I only did a general one in service - so I can only tell you what happens in our large FE / sixth form college. supervision in workshops is carried out by a number of staff from different areas - though predominantly those from 3D Design background. However - only staff with a certificate in the safe use of woodworking machinery can supervise students using that equipment. Other, uncertificated, staff can use the machines - they just can't supervise students doing so. They can supervise students using equipment that is less likely to chop off body parts. As well as teaching staff we also have a technician who has been trained in the use and maintenance of the woodworking machinery - this technician can also supervise students using that equipment. hope this helps.