Do you think it’s your job to just sit there? Think again, you are not a stationary camera. Your job is to investigate. What does this mean when your job is to surveil? It is your job to look at all the information (background reports, comprehensive report, address histories, etc...).
You will use this information to make deductions and inductions on everything from if the subject lives at the address you are at, if they have a workplace, or if vehicles are in his or her name or in a relative’s name. This can tell you how long to stay at the residence, if you need to spot check, if a canvas is required, what type of canvas?
Reading these reports takes a little getting used to but once you do, they are invaluable.
Most people hate doing canvasses because they don’t get results and they increase the chance of a burn. I was one of those investigators until I was finally taught how to do it correctly. A canvass done correctly can yield incredible results.