Looks like this guy's name (as reported in the ABC news clip) is not in the CX staff directory any more. Terminated? Hidden from search results?
Airport security is a joke, it is full of holes are both ends! More resources should be devoted to the people who have unrestricted access to the parts of the aircraft that most people don't see, instead of hassling the crew and passengers going through security.
Anyway, I don't see how he can be found guilty of trafficking drugs. As per the news report, the police only saw him remove a package (something) from the aircraft, but the police went to search his car, drugs were found in the car. The police must prove that that something from the aircraft were in fact the drugs. May be possession of illegal drugs would be an easier charge to stick to this guy. Even then, if the car in question is a company car that the CX engineers in SYD drive out to the ramp, then this engineer is not the only person with access to this car.
Enough with my random thoughts as a lawyer-wannabe.