Latent fingerprints are invisible to the naked eye and require special techniques, such as dusting powders, chemical reagents, or light sources, to make them visible. They are formed by the natural oils and sweat from the skin and are commonly found at crime scenes.
Match the LIST-I with LIST-II
| LIST-I | LIST-II | 
|---|---|
| A. Ridges | III. The raised portion of the friction skin of the fingers | 
| B. Type Lines | I. Two most inner ridges which start parallel, diverge and surround or tend to surround the pattern area | 
| C. Delta | IV. The ridge characteristics nearest to the point of divergence of type lines | 
| D. Enclosure | II. A single ridge bifurcates and reunites to enclose some space |