JCS Law - John C Schleiffarth, P.C.

At JCS Law - John C Schleiffarth, P.C., individuals and families in St. Louis find focused help when facing criminal charges and life-changing legal problems. Based in the Cortex Innovation District in St. Louis, Missouri, this criminal justice law firm represents people who have been accused of crimes at the local, state, and federal level. Clients turn to JCS Law when their freedom, record, career, and reputation are on the line and they need clear guidance and strong advocacy.

Founded by St. Louis criminal defense attorney John C. Schleiffarth, JCS Law has built its reputation on practical, results-driven defense strategies and attentive client care. The team handles everything from first-time DWI charges and drug crimes to serious violent offenses, sex crimes, and federal indictments. Many clients come to the firm in crisis, often for the first time in their lives, and find a legal team that explains the process, listens carefully, and works to protect both their legal rights and their future.

JCS Law serves clients from across the St. Louis metro area and surrounding Missouri communities, including professionals, students, commercial drivers, and parents. Whether someone is worried about losing a job because of a DWI, facing multiple felony counts, or trying to protect a clean record for military service, the attorneys at JCS Law focus on realistic solutions and the best possible outcome in every case.

Specialties

JCS Law focuses primarily on criminal defense and DWI defense in St. Louis, Missouri, with a practice built to handle complex and high-stakes cases. The firm represents clients charged with DWI and felony DWI, including DWI with drugs, commercial driver (CDL) DWI, and cases involving refusal of breath tests or field sobriety tests. The team understands how a DWI can affect a driver’s license, employment, and professional licensing, and works to challenge BAC tests, traffic stops, and police procedures, as well as to pursue DWI expungement when the law allows.

Beyond DWI, JCS Law provides defense in a full range of criminal cases: drug crimes, marijuana charges, gun and weapons charges, domestic violence, violent crimes, property crimes, stealing, probation violations, minor in possession, sex crimes, and murder or manslaughter cases. The firm also represents clients in federal criminal matters, including federal drug conspiracy, federal firearms charges, white collar crimes, healthcare fraud, embezzlement, and federal sex crimes. Clients benefit from attorneys who are skilled in both negotiation and trial practice and who understand how to evaluate evidence, cross-examine officers, and use procedural tools like motions to suppress.

What sets JCS Law - John C Schleiffarth, P.C. apart is the combination of strategic, aggressive defense with personal attention. Reviews describe attorneys who take time to explain options, prepare clients for court, and stay in close communication throughout the process. From negotiating reduced charges for professionals who cannot afford a conviction, to protecting young people from long-term consequences, to defending serious felony and federal cases, JCS Law aims to provide careful, tailored representation in each matter it takes on.

Why Choose JCS Law

• - John C Schleiffarth, P.C.
• Focused criminal and DWI defense: A St. Louis law firm concentrating on criminal justice matters, from first offenses to complex felonies and federal charges.
• Proven results across case types: Experience handling DWI dismissals and reductions, drug and gun cases, probation issues, and serious violent and sex offense allegations.
• Strong client communication: Clients report clear explanations, regular updates, and attorneys who listen, answer questions, and reduce anxiety during a stressful time.
• Team-based representation: A legal team that includes multiple defense attorneys and staff, allowing for collaboration, careful case preparation, and responsive support.
• Flexible, accessible services: Options like free initial consultations and flexible payment terms help make quality criminal defense more reachable for people in crisis.
• Reputation for integrity and advocacy: Many clients describe JCS Law as caring, honest, and determined, with attorneys who fight hard while treating clients with respect and compassion.

Location & Accessibility

JCS Law is located in the Cortex Innovation District in St. Louis, Missouri, a central and active part of the city that is convenient to many neighborhoods, suburbs, and nearby counties. The firm is positioned within driving distance of key St. Louis communities and court locations, making it a practical choice for people across the metro area who need a criminal defense attorney in St. Louis. Its location in a major business and innovation district also makes it easy to reach from main roadways and public transit routes that serve downtown and surrounding areas.

Get in Touch

If you or someone you care about is facing a criminal charge, DWI, or federal investigation in St. Louis or the surrounding area, JCS Law - John C Schleiffarth, P.C. invites you to reach out for a free consultation. A conversation with an experienced criminal defense lawyer can help you understand your rights, your options, and the next steps to protect your future.