ULOGA PRIKRIVENOG ISTRAŽITELJA I INFORMATORA
ROLE OF UNDERCOVER INVESTIGATOR AND INFORMER

Summary/Abstract: Special investigative actions are specific measures, which are used to confront certain criminal acts that, by their nature, method of execution and perpetrator, prosecute the perpetrators of criminal acts. For the application of the same, the constitution maker defined certain legal conditions that must be met. The special investigative action of the application of an undercover investigator and informer is used against a person for whom there are grounds for suspicion that he alone or with the help of accomplices participated or is participating in the commission of precisely defined criminal acts. An undercover investigator and informer operate under the same legal conditions. There are no legal time limits for the engagement of undercover investigators and informants. The judge for the preliminary proceedings is responsible for making the decision to hire an undercover investigator and informant. When it comes to complex crimes, the use of undercover investigators and informants is particularly important because of the information provided by informants. The paper is structured in such a way as to define the term undercover investigator and informant, then explains the use of undercover investigator and informant in common law countries. The results of the research show that the application of a special investigative action of an undercover investigator and informant is appropriate in situations where it is about confronting serious forms of crime, terrorism and other criminal acts of the modern age. We can conclude that the method of preparation and the method of work are of great importance for an undercover investigator and informant. When we look at the scientific aspect, we can point out that there are no objective reasons not to use the informant as a special investigation. Informants are indispensable if the police want to play an effective role in the implementation of the policy of combating crime.

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