Cross verification of data captured by a consumer electronic device

A system for attributing a confidence level to time and location metadata associated with primary data, the system including a plurality of mobile capture devices and a mobile data communication network allowing data transfer between the mobile capture devices,

• each mobile capture device including at least one sensor for capturing primary data, and being adapted to provide metadata specifying at least the time and location relating to captured primary data, and each mobile capture device further including at least one further sensor for measuring at least one environmental parameter,
• each mobile capture device being adapted to carry out the steps of:
• capturing primary data using the at least one sensor;
• associating metadata with the primary data, the metadata specifying at least the time and location of the capture;
• and
• measuring and storing at least one environmental parameter at the time and location of the capture, and associating the measured environmental parameter with the primary data,
• in response to a trigger,
• and each mobile capture device being adapted to carry out the steps of:
• measuring and storing at least one environmental parameter;
• and
• transmitting the measured environmental parameter on the communication network,
• in response to a remote command,
• and the system including at least one device connected to the data communication network and being adapted to:
• in response to a capture of primary data being made by a mobile capture device forming part of the system,
• carry out the steps of:
• identifying other mobile capture devices in a similar location at a similar time to the capture device making the primary data capture;
• requesting and receiving environmental data from other mobile capture devices identified;
• comparing environmental data received from other mobile capture devices with the environmental data measured by the device capturing the primary data, and assigning a confidence level to the time and location metadata associated with the primary data based on the comparison.