The main objective of this paper is to analyze the importance of forensic auditing in the detection of fraud in companies in Colombia, for which a study of the different concepts, theories and interviews was used. In the document an analysis is made about the concept of fraud, audit and the relation that these have with economic crimes, in addition the concept of forensic audit is exposed as a separate instrument of the traditional or integral audit, which is used to solve cases of financial fraud as a technique for collecting evidence. In order to carry out the aforementioned, a qualitative and documentary research was carried out, which was carried out through the use of techniques related to the collection of data such as: the bibliographic review analysis, the interview or the questionnaire, the interview as a primary data collection technique, which was carried out by three auditors and two accountants, with the objective of establishing the auditors' knowledge of forensic audit techniques and their importance in detecting fraud.