[15] He set up and led HJ&A's Housing Law department, at the time, the largest in the UK, working principally for the homeless.
Ehrenfeld's British distribution deal for her new book, "Funding Evil: How Terrorism Is Financed and How to Stop It", was canceled due to a legal threat from one of the Saudis she mentioned.
[5] In 2012, Asserson represented jailed Israeli solicitor Israel Perry concerning one of the largest cases ever brought by the Serious Organised Crime Agency (SOCA), seeking to seize and gain disclosure of worldwide assets worth hundreds of millions of pounds.
Asserson challenged both orders on jurisdiction grounds, referring to the "[very concerning] effect of this novel and far-reaching interpretation of UK law" on people who retain sensitive client information.
[10][45][46] Asserson appeared on public debates, TV, and radio, concluding that the 'BBC's coverage of the Middle East is infected by a widespread antipathy toward the country'.
[7][40] In 2008, Asserson released a report alleging that the BBC Arabic radio exhibited bias during the 2006 Second Lebanon War, favoring Iran and Hezbollah.
[49] Asserson also acted for CAA in its claim against Bristol University, after prof. David Miller's conduct left Jewish students feeling "unsafe and unprotected.
[53] In 2023 Trevor published a series of articles relevant to the public debate in Israel concerning potential Judicial reforms that threatened the independence of the Israeli courts.
[54][55][56] In 2023, Trevor Asserson launched a legal action against the BBC, accusing it of biased coverage of the Gaza conflict in violation of its editorial guidelines.