Let's look how to draw fingerprint in Photoshop CS :) I know you can draw much more better ones then this tutorial. (Keywords for google.com "parmak izi çizimi" and "fingerprint tutorial")
Open a new document.
1. Make New Layer. (Layer 1)
2. Draw the elipse you see left on Layer 1 with ElipseTool.
3. Make one more new Layer, too
(Layer 2) (We will draw the fingerprint in Layer 2.)
We will use the Elipse for template.
Now with PenTool line by line and logically draw the fingerprint lines. You can see my drawings step by step the square A to D.
In Paths Palethe choose all lines and make Apple+T and a little bit pull dawn. [Enter]
Mindoz :) or Windoz or Windows users should make CTRL+T instead of Apple+T :)
Now choose BrushTool with the convenients tip by using the Chalk pattern on the list. Change the Chalk pattern size from 36 px to 5 or 9 px according to your drawing.
(Layer 1) 
ElipseTool.
PenTool line by line and logically draw the fingerprint lines. You can see my drawings step by step the square A to D.
BrushTool with the convenients tip by using the Chalk pattern on the list. Change the Chalk pattern size from 36 px to 5 or 9 px according to your drawing.