Vietnamese investigators are probing a high-profile case to see if a customer deliberately put a fly into an energy drink bottle to extort money from the manufacturer.
Initial investigation has found that the Number One bottle was compromised, with the cap slightly distorted, apparently by a sharp object.
There was nothing unusual with the bottle itself, but the amount of drink inside was a little lower than the standard level, they added.
The investigation came after last month's arrest of Vo Van Minh, who claimed that he had found a fly in the bottle - a sweetened, yellow energy drink - and asked the maker Tan Hiep Phat Beverage Corp. for compensation.
The restaurant owner in Tien Giang Province first demanded VND1 billion, but he lowered the amount to VND500 million (US$23,425).
On January 27, Minh was arrested as he attempted to collect the money from a company representative at a café.
Minh and his wife runs a small restaurant at home to sell noodles.
His family said they were not aware of Minh’s attempt to take money from the company until he was arrested.
The case has attracted controversy as many accused Tan Hiep Phat for entrapping the customer, by offering him compensation and at the same time working with the police on the back end.