Anti-theft system for a vehicle, and method for the operation of an anti-theft system

An anti-theft system for a vehicle, comprising:

• a portable identifier for transmitting a request signal with the instruction to detect the presence of objects associated with a vehicle in at least one of:
• in a particular area in and outside the vehicle;
• a vehicle-mounted receiver for receiving a request signal;
• a vehicle-mounted control and evaluation device for checking for the present of objects in the one or more particular areas of the vehicle and for outputting information as to whether an object associated with the vehicle has been found;
• a vehicle-mounted transmitter for transmitting a result signal with the information concerning the finding of objects.

A vehicle comprising an anti-theft system, with:

• a portable identifier for transmitting a request signal with the instruction to detect the presence of objects associated with a vehicle in a particular area (SBA1, SBA2, SBI1, SBI2) in and/or outside the vehicle;
• a vehicle-mounted receiver for receiving a request signal;
• a vehicle-mounted control and evaluation device for checking for the present of objects in the one or more particular areas of the vehicle and for outputting information as to whether an object associated with the vehicle has been found;
• a vehicle-mounted transmitter for transmitting a result signal with the information concerning the finding of objects.