Canadia police didn't send information about Huawei executive Meng Wanzhou's phone to U.S. authorities, according to testimony of a Royal Canadian Mounted Police officer.

Meng, who is also the daughter of Huawei founder Ren Zhengfei, was apprehended by Canada border control in 2018 over alleged business dealings with Iran - a charge she denies - and is now the subject of an extradition hearing in the Supreme Court of British Columbia in Vancouver.

RCMP Sergeant Janet Vander Graaf told the court Wednesday that, upon review of her emails with other officers present at the arrest, they didn't share device serial numbers with their American counterparts.

This contradicts earlier testimony by Constable Gurvinder Dhaliwal on Monday. He said American authorities didn't request Meng's passwords. However, he still took them from a Canada border officer during the arrest - an act that contravenes national privacy laws.

The sharing of information between Canada and U.S. authorities lies at the heart of the case. Meng's lawyers are seeking to prevent her extradition to the U.S. to face charges of fraud.

Seizing her electronic devices was an abuse of process, according to her defense because it happened before her arrest.

The devices - including an iPhone, a Huawei phone, an iPad, an Apple laptop and a USB - were taken by border control officers during Meng's immigration examination.

Later, the RCMP arrested her and the case was taken over by Staff Sergeant Ben Chang of the organization's financial integrity division. American federal agents then asked Chang for information about Meng's electronic devices.

Notes taken by Vander Graaf in the days after the arrest showed Dhaliwal told her that Chang had sent the device serial numbers to an FBI officer. But she also shared emails in court Wednesday that suggested otherwise.

The email "didn't say that Ben Chang had provided serial numbers," the sergeant said. "So it was inconsistent a bit with what constable Dhaliwal said about sharing directly the serial numbers."

Chang has since retired and refuses to testify in court as a result of his fears for his safety.