There is provided a deterrent device 10 comprising an elongate body 11 formed from an insulating material. At least one elongate metallic conductor 21 is provided on an upward surface and a conductive polymer strip 22 extends over and in contact with the or each conductor 21 such that the upward facing surface of the or each metallic conductor 21 is not exposed. The provision of the polymer strips can improve appearance and performance.
