This article examined organisational challenges arising from the implementation of a new training course for investigative interviewers of vulnerable witnesses. The course was delivered via e-learning (computer exercises) and also involved mock interviews conducted over the telephone. Thematic analysis was conducted of: (a) trainees’ anonymous written feedback submitted to an online discussion forum on the training programme’s website, (b) trainees’ responses to face-to-face questions during semi-structured qualitative interviews, and (c) correspondence between trainees and trainers regarding the training programme. Despite unanimous support for the new training programme, three challenges were identified: limited allocated work time to complete the training, conflicting work practices arising from staggered course enrolment, and difficulties associated with computer and technical skills. These organisational challenges must be addressed to ensure that any future evaluation of the programme on skill performance provides a true indication of the programme’s impact on skill development. From a managerial perspective, organisational challenges need to be addressed in order to maximise the accessibility, completion and long-term success of an e-learning training model for interviewers.