the Sony night shot camcord has infrared lamp to be used to take picturee under completed dark condition. to do some modification can make it take picture see throught thin clothing.
1. remove the color filter before the CCD, as it will disassemble the camera and disassembly the CCD, so it may need a little bit professional skills.
2. buy a Infrared filter lens and put it before the outside lens.
Now a see-through camcord is finished.
Other digital camera also can be make to to such job. but without active infrared lamp, the modified digital camera can only take such pic under summer sun lights.(or other strong light)