When evaluating candidates for technical support positions, one of the requirements is that the candidate must be able to communicate well with the developers and the clients. So, as an interviewer, it is my job -- in the span of half an hour -- to test whether a candidate can write clear, effective test cases and technical report.
In your experience, are there any questions I can ask or simulations the candidates can perform in order to test his or her writing skills in this area, within the bounds of the interview setting?