The problem in the exam situation is known. In the case of an exam, the use of unauthorized auxiliary tools (such as mobile phones, smartphones, tablets, wearable devices, etc.) is considered a deception. The services provided now range from pure "cell phone indicators" to active cell phone jammer and smart IMSI capturers, which can be forced to be replaced with new GSM cells, and personal data can also be recorded in the wireless network area.
The Baden-Württemberg Ministry of Education and Cultural Affairs issued a statement on this and clearly stipulated the use of such equipment: From the perspective of the Ministry of Education, regardless of the data protection check, the use of radio waves that emit itself is prohibited A device that completely blocks mobile phone reception ("mobile phone jammer"). Because within the GSM frequency range, only mobile network operators have the right to use the frequency they purchased, and therefore have the right to operate mobile phone jammers.
The operation of the mobile phone blocker by a third party is the use of frequency without frequency allocation and is prohibited in accordance with Article 149, paragraph 1, paragraph 1 of TKG. The use of mobile phone blocking programs does not need to "allocate frequencies", "if the authorities use them to exercise legal powers in accordance with the frequency use conditions set by the Federal Network Agency." Insufficient legal basis for use in schools.
Due to the violation of telecommunication confidentiality, the use of equipment for listening to or recording messages is not legally allowed and should be punished. From the perspective of the Ministry of Culture, according to the data protection law, it is allowed to scan a specific frequency range and only indicate that there is a device connected to a mobile device in the room if no specific location is determined, because no human data has been processed.
The question arises whether it is wise or useful to use this kind of cell phone jammer device, so it is necessary. In public schools in Baden-Württemberg, due to special regulations that apply to mobile phones, even carrying a mobile phone with you is a deception. Since the role of this device can be easily bypassed, for example, if the mobile phone is switched to airplane mode, the scanner will not be able to achieve its purpose under inspection. In this case, the frequency meter cannot detect the device. But this will still be carried illegally by you, which in turn is a deception.