Pre-record data storage device and pre-record data storage method

A pre-record data storage method comprising:

• executing a face comparison process to compare a person's face detected from an image obtained by photographing a person with registered face information;
• and
• allowing a first recorder to start recording from a face detection time when the person's face is detected until a matched time when the detected person's face matches the registered face information, to record pre-recording data, and when the detected person's face matches the registered face information, storing the pre-recording data from the face detection time to the matched time in a second recorder having a capacity larger than a capacity of the first recorder.

A non-transitory computer readable storage medium storing one or more programs, the one or more programs comprising instructions, which, when executed by a pre-record data storage device, cause the device to:

• execute a face comparison process to compare a person's face detected from an image obtained by photographing a person with registered face information;
• and
• allow a first recorder to start recording from a face detection time when the person's face is detected until a matched time when the detected person's face matches the registered face information, to record pre-recording data, and when the detected person's face matches the registered face information, storing the pre-recording data from the face detection time to the matched time in a second recorder having a capacity larger than a capacity of the first recorder.