T4Photo is an app that allows to get a trust photo contextualized: Geoloc Timing Network Device Information User and Object Information All communication between T4Photo and an archive system based on T4A is done by messages contained within a TrustObject, which is also archived, allowing to have maximum security and traceability. T4Photo includes a task manager that allows to receive defined tasks in a third-system or creating our own tasks with new events. Benefits: To capture situation