Zvonimir Roso

Who is Zvonimir Roso?

Zvonimir Roso was a Croatian criminologist and psychologist, one of South-eastern Europe’s foremost authorities in the science of polygraph and the founder of what is now known as "Zagreb School of Polygraph".

Roso was born in Kuna Pelješka and lived in Zagreb, Croatia. He earned his BA in Psychology from University of Zagreb and later pursued postgraduate studies in psychotherapy at the School Of Medicine, University Of Zagreb. He received a Master’s Degree in criminology from Skopje University and was professor at the Police Academy of Zagreb.

Zvonimir Roso is the author of two highly regarded books: Polygraph in Crime Investigation and Informative Conversation and Interview. Written from an interdisciplinary perspective, his works are considered the most comprehensive text on polygraph ever published in South-eastern Europe. They are studied not only by criminologists, but also by students of law and psychology.

In the book Polygraph in Crime Investigation Zvonimir Roso explores the possibilities of application of the polygraph technique and gives a history of lie detection methods. He presents the physiological and psychological basis of polygraph examination, experimental studies of blood pressure, pulse, respiration and galvanic skin reflex. Book explains polygraph methods, the handling of polygraph recordings and interpretation of the results. The author advocates comparative advantages of POT and GKT over CQT. Observations on the legal status of the polygraph, the admissibility of the results of polygraph testing, the opinions of leading Croatian lawyers and crime investigators and some court decisions, which serve as legal precedents, are mentioned. The book contains studies of actual cases.