Abstract: An anti theft tag with separated encapsulated RFID tag and an EAS label, wherein the tag comprises a first plastic body equipped with an EAS label, a second plastic body in which a pin engagable to an EAS label is accommodated, said pin is releasably lockable to a locking mechanism of the EAS label, the pin has a head and a stem formed so that it may be engaged with the locking mechanism of the EAS label, and further, the second plastic body contains an RFID inlay. Said plastic body can be injection moulded onto said RFID tag. The operating frequency band of the RFID tag is adjusted by the material of the plastic body and the thickness of the material encapsulating said RFID tag. The material of the plastic body preferably comprises a filling material having a relative dielectric constant exceeding that of the base material. The RFID tag can be inserted into a cavity of said plastic body composed of two parts defining said cavity.