Elizabeth Holmes begins sixth day of testifying in her own defense at Theranos trial

Elizabeth Holmes began a sixth day on the stand Tuesday, testifying in her own defense in a widely followed trial centering on her now-defunct blood testing company, Theranos.

Holmes answered Leach with a more combative tone than she had in days past, snidely raising her eyebrows and smiling at repetitive inquiries. The prosecution introduced evidence that Theranos was performing very few of its own tests, showing through one 2013 email the company performed only three of its 12 tests on its own devices.

Leach also asked Holmes whether she told investors Theranos devices were being used on military helicopters. She said she did not think she did, as it would have been incorrect.

In the preceding days, Leach grilled Holmes over her assertions she was not aware of problems with Theranos devices and interrogated her relationship with her co-executive and former romantic partner, Sunny Balwani.

Holmes previously testified that she was emotionally and physically abused by Balwani, who is 19 years her senior. She said the businessman closely controlled how she ran the business, who she spent time with and even what she ate. Balwani denies these allegations and faces his own fraud trial in 2022.

Leach has sought to prove Holmes had the final say over decisions at Theranos and showed the jury text messages from Balwani raising questions about the capabilities of the tests compared with what Holmes publicly advertised.

He also pointed to evidence Holmes worked to quash inquiries into the accuracy of Theranos tests from reporters as well as internal doubts from employee whistleblowers.

Over the last two months, prosecutors have repeatedly returned to one damning piece of evidence showing Holmes personally doctored documents. In one case, she affixed a Pfizer logo to a report sent to Walgreens executives to imply the pharmaceutical company had endorsed the findings. In another, she used a logo from drug firm Schering-Plough.

The defense team for Holmes has indicated it will not call many more witnesses, which means the trial could draw to a close in the coming weeks.