We live in a military town, and when people are asked for a photo ID, they often will show you their military ID.
If this is an ID that will be needed to be copied, ask for another photo ID; a passport or driver’s license is best.
The photocopying of U.S. Government identification cards is a violation of Title 18, U.S. Code Part I, Chapter 33, Section 701 and punishable by fine and imprisonment.
It is OK to ask for one to visually ID someone, but under no circumstances can you photocopy or scan one unless you are from a government agency or law enforcement.
The reason is that no safeguards are in place to insure the card won’t be counterfeited or “cloned” based on a photocopy.
Getting or producing a military ID is considered a critical asset to have when planning and executing acts of terror or crime against the U.S. military.
See the links below for more details on the limitations.
http://www.army.mil/article/28452/photocopying-military-cac-ids-a-violation-of-federal-law
Please here for a PDF of this Title Tip.