Poster (and actually the title slide on the overhead projector acetate, from which this is scanned) for a talk I gave at Royal Holloway in 1991 or shortly afterwards mostly about the ethical and procedural implications of databases such as the UK’s Police National Computer and other police systems. I had worked on H.O.L.M.E.S. (yes, really: the Home Office’s clumsiest acronym), which ran in police incident rooms, for a couple of years. Black and white on acetate, but coloured digitally here.