For comparison, the plain fingerprints and the fingerprints with deposited CTFs were observed under white light incident obliquely on the surfaces. Only under oblique incidence could the plain fingerprint marks on the reflecting aluminum sheets become well resolved for photographing. For purposes of comparison, we properly positioned the left and right parts of the fingermark so as to simulate the uncut continguous fingermark as closely as possible and images were taken simultaneously of both sides of the fingerprint mark, thereby ensuring identical conditions of lighting and camera gain for both sides. Fig. 2(b) and (c) shows the results we obtained with and without CTF deposition on fingerprints when viewed under obliquely incident white light illumination. While the fingerprint marks on the undeveloped right side are just visible, the enhancement of the fingerprint mark on the left side due to the CTF deposition is clearly visible. Fig. 2(b) shows the enhancement in the visibility of the fingerprint marks on a glass cover slip – the CTF deposition on the fingerprint features is clearly visible on the left, while fingerprint debris alone on the right can just about be traced out. There is almost no continuity to the lines formed by the debris alone on the right, while the lines on the left due to the deposited CTF are continuous. Similarly, in Fig. 2(c), the fingerprint lines can just be discerned on the reflecting aluminum sheet on the right under oblique illumination which avoids the strong reflection from the aluminum sheet. The scratch marks on the sheet that also strongly scatter light are clearly visibile on the right side. In comparison, the left side with the CTF deposition clearly shows the fingerprint mark with high clarity and detail.