In a dual-layered verification approach, what is the expectation after an initial portable fluorescence scan passes a high-risk shipment?

Verify with a method offering greater spectral resolution

The dual-layered verification approach recognizes the inherent limitations of field-deployable technology, such as a portable fluorescence scanner, which typically provides only a quick pass/fail based on known markers rather than absolute certainty regarding contaminants. Therefore, if this initial, rapid screening raises any flags, or even as a standard procedure for high-risk shipments, the required follow-up step is to verify the batch using a method that provides superior analytical depth. This generally means employing technology with greater spectral resolution, such as advanced spectroscopy, to ensure comprehensive security while minimizing delays caused by initial screening stages.