Volume 28, Issue 4 (October 1983)
Application of Experimental Variables to the Use of the Electrostatic Detection Apparatus
The article discusses the theory of the electrostatic detection process and its application to the investigation of questioned documents. A special device for this purpose was developed and introduced to the market in 1978. An experimental design offers a system to determine the quality of the detection process as a function of different technical and environmental factors. Working hypotheses were tested under empirical conditions and gave satisfying results.