Ink dating analysis

Purpose To find scientific evidence of paper age and origin.

Method There's more to a piece of paper than meets the eye - and paper analysis can find it.

From “sleeves” covering an entire forearm to “chest pieces” from clavicle to clavicle, there isn’t anywhere on anyone that’s off limits anymore.

Once considered a mark of the rough, tough and rebellious crowds, tattoos have become so mainstream, we’re not surprised to see one on the girl next door.The ink library handles a variety of cases, from threat letters — the Secret Service protects not only the President but also other high-profile government officials — and ransom letters, baseballs, and phony documents where someone is "trying to obscure the truth in some way," says Joseph Stephens, ink library document analyst.Want to cover up insider trading by adding information to a stock worksheet after the fact?Chemical analysis evaluates composition and p H; physical analysis measures gloss, strength, color.Organic analysis detects carbon-based traces of plants and organisms; while inorganic analysis identifies mineral evidence in pigment and ink.