Ann: Half Year Accounts, page-9

"Wavefront advised that it had commenced further independent validation testing at Purdue ICBR in January 2017 and the results are expected in the near future."

If a "globally recognised leader in biometric technology analysis" can't test the tech in 10+ weeks with less than 20 subjects, it's no good.. Or it's not testable. Same thing really..

Purdue have better things to work on by the sounds of it anyway.

Their website

"Infant Data Collection
We are working with a company funded through the Bill and Melinda Gates Foundation, Global Good, and have been tasked with; identifying 0-9 month old children using biometric technology, such as face recognition, ear recognition, palm, iris, fingerprint, and footprint."​

According to their website all testing is done in house. They are either incapable of testing our tech or simply have other bigger projects to work on and just can't dedicate the time.