Whilst there are situations where an investigation will not be viable, often more evidence remains than might be obvious to the untrained eye.  For example, in the past our experts have been able to find traces of petrol in a room that appears to have been burnt out, or they have recovered components from a faulty dishwasher in a warehouse that had been reduced to a shell.  We’re always happy to offer free advice and will tell you quickly if a building has sustained too much damage for an investigation to be possible.