1. A method for the investigation of an at least one object shown on an at least one first displayed video clip captured by an at least one first image capturing device in a monitored site, the method comprising: receiving a selection from a human operator of an at least one object in an at least one first video clip, said at least one object having an associated creation time and an associated disappearance time; automatically displaying, in forward or backward direction or at a predetermined speed, an at least one second video clip with a field of view neighboring a field of view of the first video clip, starting at the predetermined time associated with the associated creation time of the at least one object in the first video clip or the associated disappearance time of the at least one object in the first video clip; receiving a selection of a second object in said at least one second video clip responsive to an action of the human operator; receiving from the human operator a manual association of the at least one object with said second object, the association identifying said second object as being the same as the least one object; and based on said association, presenting in sequence the at least one first video clip and the at least one second video clip.