RaquinMercer represents clients facing misdemeanors and felonies in Maryland and the District of Columbia at trial, on appeal, and in post-conviction proceedings. Our team has decades of litigation experience that can make the difference in your case.


RaquinMercer offers advanced DNA/forensic science consulting services for clients and attorneys. We identify the problems with DNA/forensic science in your case and develop comprehensive solutions and strategies to make sense of the science.

RaquinMercer commits to the highest quality of representation for our clients. Our mission is to serve you. Our clients are the best ambassadors of our dedication to excellence. Read here what our clients say about our commitment to them.

About our logo. About our firm.

Our logo represents a lion and a fox balancing on a scale of justice around which a DNA helix is wrapped.

The lion and the fox represent the qualities and attributes of strength and wit that your defense attorney needs to have in order to reestablish the balance of justice: too often in our system of criminal justice, overreaching police officers and overzealous prosecutors can tilt the balance of advantage against our clients leaving the ideal behind the scale of justice without meaning. While Isabelle represents the strength, the straightforwardness, and the relentlessness of our fight for justice – the lion. Steve embraces the smarts, resourcefulness, and wit of the fox.

Wrapped around that scale and part of the balancing equilibrium is the DNA helix, which represents science. Science is in no one’s corner. When properly understood and used, science helps achieve the goals of fairness and justice. Too frequently, we see the science being misstated in a courtroom which leads to confusion and wrongful convictions. The DNA helix represents our firm’s commitment to thoroughly understanding and challenging science in a criminal case.

About our Team.

Isabelle Raquin and Steve Mercer share a life-long commitment to securing freedom for wrongfully charged and convicted people. In this story written by Megan Rose and published by The Atlantic and ProPublica in 2017, you can read about Steve Mercer’s commitment to securing freedom for two wrongfully convicted men who were prosecuted based on junk science and a false confession, but decades later exonerated by DNA—only to face another round of prosecution. Read about our team.

What Our Clients Say About Us

To our current and former clients: we thank you sincerely for your trust and patronage.

To our future clients: we look forward to working with you.

Isabelle Raquin Testimonial from Joe

Because of Mrs. Raquin extensive experience dealing with criminal cases, she was able to assess my situation with close detail, look at the facts, and the law as it applied to my charges, and pay personal attention to my concerns regarding the outcome of the case…