The Hong Kong employer accused of beating at least three Indonesian maids – including Erwiana Sulistyaningsih who is still recovering in hospital in Java - will be escorted by police back to her apartment in Tseung Kwan O for a house search on Tuesday afternoon.
Aside from Erwiana, officers have interviewed two other maids, aged 28 and 31, who claimed they were also abused by the same employer separately between 2010 and 2011.
A police investigator said they were trying to contact a fourth victim who is working in Singapore.
The 44-year-old suspect, Lo Wan-tung, is now being detained at Sau Mau Ping police station.
She was intercepted at the airport while trying to leave for Thailand on Monday afternoon. No charge has been laid.
She complained of feeling unwell after being taken to Tseung Kwan O police station on Monday night.
The housewife was discharged from Tseung Kwan O Hospital after treatment. The hooded woman was then brought to Sau Mau Ping police station at about 1am on Tuesday.
It is understood officers have not taken testimony from the woman.
“If necessary, we will talk to her husband and teenage children as part of the investigation,” the officer said.
Lo asked her relatives to help look after her two children before she tried to leave for Thailand on Monday. Investigators were told that her husband was a businessman and was not always in Hong Kong.
She and her family moved out of Beverly Garden in Tseung Kwan O before the alleged beating of Erwiana, 23, unfolded on January 12.