Affiliation: | 1Department of Mathematics and Statistics, The University of Edinburgh, Edinburgh, United Kingdom EH9 3JZ 2Biomathematics and Statistics Scotland, Scottish Crop Research Institute, Invergowrie, Dundee, United Kingdom DD2 5DA 3Department of Computer Science, Royal Holloway and Bedford New College, University of London, Egham, Surrey, United Kingdom TW20 0EX 4Department of Electrical Engineering and Computer Science, Lehigh University, Bethlehem, Pennsylvania 18015, United States of America 5Derbyshire Constabulary Headquarters, Butterley Hall, Ripley, Derbyshire, United Kingdom DE5 3RS 6Police Research Group, Home Office, Queen Anne's Gate, London, United Kingdom, SW1H 9AT |