Forensic Questioned Document Examination Services- Private Investigators Nairobi Kenya As a Private Investigations Firm In Kenya, LY Detectives undertakes Questioned-document analysis which involves a number of areas of forensic inquiry. It is an apprenticeship field, requiring years of practice and work with experienced examiners. The most familiar area of questioned-document examination is handwriting analysis. Here LY examiners are called upon to determine if a particular person was the author of a document. The examiner compares characteristics of the questioned document with those of a document either previously written by the suspect or purposely taken as a known handwriting sample, also called an exemplar/sample. There are no universal standards for the number of characteristics that must be present in order for the document examiner to conclude that a particular person was the author of a document. It is up to the individual examiner to determine when there is sufficient evidence. LY Forensic document examiners are called upon to determine if a particular instrument made a typewritten or printed document or if a particular copier made a copy of a document. Unless there are some unusual characteristics or defects in the instrument, it is generally not possible to answer such questions definitively.