When writing a text, the hand of the writer comes in constant contact (friction) with the paper, thus depositing skin cells on it. DNA analysis of a scanned sample of the paper surface may reveal the genetic profile of the person that wrote the text. This profile can then be compared with the genetic profile of the person purported to be the author to determine whether it is the same person or it is a case of fraudulent will.

Identifying the person that drafter or just signed a text has proven to be particularly important in cases of anonymous letters, forging signatures in contracts or other documents, but mainly in cases of fraudulent wills to claim an estate. Finding the forger is not always simple, this kind of documents usually are exchanged by many persons; for this reason, scientists specialised in forensics are required to safely handle the evidence, collect samples from the right places and then interpret the results. DNAlogy Experts, having a lot of experience in such cases as well as the right scientific tools to study such samples, guarantee the best possible result in every case.