Smart ID and passport system going offline

With all the technology of today, why is the photograph in black and white and not colour?

Black & White actually shows more detail than color. Not sure this was a factor or if it was a cost basis but combo that with cost of printer cartridges needed and variety of complexion and B&W I'd think has the best performance. I'm pretty sure the photo would be stored as color tho. I think on printed cards, the color ones wear differently too depending the post printing process
 
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