The thesis deals with insurance fraud on the Czech insurance market. The introductory section describes the actual state of the insurance market. Insurance fraud is presented in terms of legislation, their species and the general alarming indicators. The next section deals with internal fraud and depictures a brief profile of the typical internal fraudster, indicators of their suspicious behavior and ways of prevention. The following chapter describes the external fraud in the life and non-life insurance, and is supplemented by a separate chapter describing organized fraud. The following part is devoted to statistics of insurance fraud, both from the perspective of the Czech Republic as well as some European countries. The final section des...