Criminal Defense

Jeffrey & Erwin, When Experience Matters Most

A Long History In Aggressive Defense

The Illinois criminal justice system is known throughout the U.S. as being exceptionally tough with harsh penalties imposed on criminal convictions. At Jeffrey & Erwin, LLP, our attorneys take the job of criminal defense very seriously, as proven in our many victories in difficult cases. Having a seasoned and experienced former Prosecutor on your side can make all the difference. We know what the State knows!

Defending Your Rights

Those of us that work within the criminal justice system know how important the quality of a criminal defense lawyer is to the final outcome of every case. Poor representation, lack of energy on your case, and inexperience could result in a less than favorable verdict. It is absolutely imperative that you have an experienced trial lawyer representing you, attorneys who are personally committed to your freedom and your cause. The attorneys at Jeffrey & Erwin, LLP are available to discuss your legal problem and your defense. When you choose to work with us, you can be confident that you will receive the personalized legal solutions that you need and the supportive assistance that you deserve!

Criminal Defense Lawyer in Oswego


  • Arson

  • Assault / Aggravated Assault

  • All Felonies & Misdemeanors

  • Battery / Aggravated Battery

  • Burglary

  • Domestic Battery

  • Drug Possession, Delivery & Manufacturing

  • DUI/Drunk Driving

  • Expungements

  • Forgery

  • Home Invasion

  • Identity Theft

  • Internet Crimes

  • Juvenile Crimes

  • Murder

  • Property & Financial Crimes

  • Robbery

  • Post-Convictions

  • Sex Crimes

  • Theft Crimes

  • Violent Crimes

  • Weapons / Gun Charges 

We will work tirelessly to ensure your case is solved efficiently and effectively.

Let us solve your case for you. Give us a call today.

What Makes Us Different

  • We have a wealth of experience
  • Our goal is to obtain the best possible result for our clients
  • We are your personal advocate!

Client saved from LIFE IN PRISON. Jeffrey & Erwin secured their client NOT GUILTY of all 10 counts of Predatory Criminal Sexual Assault even with a taped confession.  People v. C.K.

Jeffrey & Erwin won another verdict of NOT GUILTY on 2 counts of Criminal Sexual Abuse, even with a recorded phone call.  People v. M.W.


Client found NOT GUILTY of HOME INVASION, ARMED VIOLENCE, ARMED HABITUAL CRIMINAL, and FELON IN POSSESSION OF WEAPON.  Mr. Erwin was able to destroy the States’ star witness and renowned Detective.  People v. S.S.


Another verdict of NOT GUILTY for their client charged with leaving a child on a school bus unattended. The client faced counts of Child Endangerment and Abandon School Bus with Children.   People v. J.W.


Jeffrey & Erwin secured another victory when their client was ACQUITTED of Criminal Sexual Assault with another taped phone call MAKING ADMISSIONS. The jury deliberated for only 30 minutes.

People v. M.J.


Another NOT GUILTY victory occurred for a client tried for Aggravated Battery to a Child and facing to register as a violent offender against youth even.   People v. J.A.


Client’s case was DISMISSED after a hearing to suppress evidence defending a man accused of selling three ounces of cocaine.
People v. J.L.

Jeffrey & Erwin’s reputation further soared after successfully defending a client charged with two separate domestic battery cases against the same victim. After the victim’s credibility was destroyed on the first case and a NOT GUILTY, the State DISMISSED the second case outright.
People v. J.K.

Professional Associations

Contact Us Today For A Free Consultation

At Jeffrey & Erwin, LLP, we take swift, strategic, and aggressive action to protect our clients’ rights and interests. Contact us immediately for a free consultation regarding your specific legal matter.