About Us The mission of the law firm of Campbell and Johnson, PC is to provide exceptional legal representation for all of our clients. Our trial experience when it comes to criminal defense, alternative dispute resolution, worker’s compensation, medical malpractice, bankruptcy, and appeals is unmatched. With over 40 years of combined experience practicing law in both State and Federal Courts, and two former elected State’s attorneys as partners, we offer extensive array of legal services, including representation in personal injury, real estate, bankruptcy, and matrimonial law. We strive in each and every instance to achieve the best possible outcome for our clients. Clay Campbell is one of the top criminal law attorneys in the country. For over two decades, he has successfully represented clients in complex criminal and civil cases. He was recently admitted to the prestigious National Trial Lawyers “Top 100 Trial Lawyers” . Timothy W. Johnson has been representing clients throughout Northern Illinois for over a quarter of century. During his stellar career as a criminal defense attorney, he has been responsible for handling thousands of felony, misdemeanor, and driving under the influence cases, both as a prosecutor and defense attorney.