When he was asked to pour large amounts of iodine from one container into another at the Sydney chemical company where he worked, Paul Flavell pushed back, worried about where it would end up.

As a warehouse employee of Cyndan Chemicals, Mr Flavell knew the company never used iodine to make anything in its factory. He also knew the chemical was often used in the manufacture of drugs.

Michael Snounou, former Executive Director, Cyndan Chemicals will be committed to stand trial over serious drug offences. Credit:Cyndan website

“I asked ... why? It didn’t seem right, it didn’t seem lawful,” Mr Flavell told a Sydney court last week.

The former Cyndan Chemicals employee was one of multiple witnesses to appear at Central Local Court, where the company's former director Michael Snounou was committed on Friday to stand trial.