"For some time now, certain practical and theoretical achievements of forensic sciences have become subject of a very serious criticism. It is difficult to say what was at the root of this process: whether it was the glaring neglect on behalf of the experts and others in the trial of the so called “Birmingham Six” (although this very case is often considered a milestone in expertise quality), or other, unfortunately numerous examples of drastic expert errors, which led to penalizing innocent persons, or the increase of methodological awareness of some academic authors. Undoubtedly, both factors had their role here – dramatic social response to the judicial mistakes, as well as essential deepening of the interest in epistemological aspects of forensic sciences. "(...)