Where the evidence usually turns up first
Activity shows in the least disturbed places: behind the lowest shelf, under a pallet that has not moved for months, in the corner behind a bin, along a wall where cartons are stacked. Those are exactly the places a routine cleaning attendance reaches and general use does not. Droppings, gnawed packaging, shredded material and greasy rub marks are all visible to someone who is looking at the floor rather than at the stock.
That makes the observation genuinely valuable, because activity found early is a smaller problem than activity found once product is affected. The condition for it being useful is that the report reaches somebody who can act. A verbal mention to whoever happens to be on site at the time is not a report, which is why the recipient belongs in the scope. A named recipient and a written note are what turn an observation into something the premises can act on.
