Tesla, the car manufacturer, and one of its contractors are in violation of federal and state human trafficking laws. The company allegedly used contractors to mistreat immigrant workers on the B-1 business visitor visa, and have threatened to withhold pay to incentivize employees to continue working. The company was trying to bypass paying for employment-based visas, which is more costly. Notably, Judge Lucy H Koh of the US District Court for the Northern District of California stated, Tesla and Eisenmann Corp. are not liable under the False Claims Act.
See "Tesla Can’t Skirt Trafficking Case, Beats Visa Fraud Allegation", Laura D. Francis, Bloomberg Law, March 21, 2019