We work with three approaches that allow us to successfully assess documents from different perspectives. If one path is not accessible or an access is blocked, we use the next one to reach a result that can be used in court. The sciences for pursuing these three paths or approaches are called linguistics, psychology and criminology.

In order to grasp the individuality of an author, it is not enough to analyze their text only at the classic levels of analysis. The various sub-disciplines of linguistics must also be used: error linguistics, sociolinguistics, neurolinguistics and especially psycholinguistics, which has many overlaps with linguistic psychology. This also provides access to psychology.

In addition to linguistics, language profiling primarily uses processes and methods from motivational and perceptual psychology. Unlike others, our focus is not on texts that are relevant to the evidence, but rather on the authors behind these texts - with their individual style and their entire personality. This especially applies to our credibility analyses.

The contents of anonymous letters often constitute one or more criminal offenses. The events and actions must therefore also be reconstructed and assessed from a criminalistic perspective. We therefore see the location of at least author identification as a neighboring discipline to writing examination and speaker recognition in forensic science (Drommel, language profiling, p. 45).