Yes, I think that's correct.
As part of our investigation, we would ask a producer, for example, what are your biosecurity measures in place? What is expected when someone enters into your biosecurity zone? Is it expected that they shower in/shower out? Is it expected that they change their footwear? Is it expected that they wash their hands? We would gather information about the incident and the applicable measures that a particular premises has in place and expects individuals who enter it to adhere to.