“…First attempts to do so relied on motive, with anger/revenge, crime concealment, financial, pyromania/excitement and wanton/vandalism firesetters presented as important subtypes (Lewis and Yarnell, ; Inciardi, ; Prins et al, ; Icove and Estepp, ). One limitation of this approach is that it generates a large number of subgroups – from 6 (Inciardi, ; Dennett, ) to 15 (Rix, ), but a more important problem is that it is often difficult to find one clear‐cut, single motive (Geller, ; Horley and Bowlby, ). Firesetting is a complex behaviour influenced by interrelating biological, psychological and social factors (Koson and Dvoskin, ; Smith and Short, ).…”