A key element in many future-oriented technology analyses is the expert forecasting workshop. These workshops provide a means of combining codified and tacit knowledge to explore the plausibility of various technology options, providing key intelligence for assessing the potential innovations that may stem from them. This paper offers a five-stage approach to conducting such a workshop. It reflects on attributes of one such session, conducted within a larger study concerning biosensor innovation pathways. The workshop drew upon quantitative and qualitative data to stimulate the consideration of future prospects. We reflect on issues in conveying prior analyses to the workshop participants, keying on the value of succinct visualisations. Post-workshop synthesis resulted in the generation of three innovation pathways for nanobiosensors.