John C. Schleiffarth
Facebook LinkedIn

John C. Schleiffarth

120 S Central Ave
#1550
St. Louis, MO 63105

Phone: 314-561-9690

Website: jcsattorney.com

National Task Force Task-Force-Member General Member

About John C. Schleiffarth

John Schleiffarth is licensed to practice in both the state courts of Missouri and the Federal Courts in the Eastern District of Missouri. We offer free consultations and payment plans are available in most cases. JCS Law is a member of MACDL ( Missouri Assc. of Criminal Defense Lawyers, NACDL (National Assc. of Criminal Defense Lawyers), BAMSL (Bar Assc. of Metro. St. Louis), JRCLS (J. Rueben Clark Law Society) and the Missouri Bar. John Schleiffarth and JCS Law have been awarded a Client Distinction Award in 2013 and 2014 from Martindale-Hubbell, Avvo.com Clients Choice Awards for DWI, Bankruptcy and Criminal Defense in 2012 and 2013, JCS Law was featured in Attorney At Law Magazine in December of 2012 as “Firm of the Month” and JCS Law is Fully Accredited by the BBB with an A rating. 2014 Summer Session Graduate; 2015 Summer Session Graduate; 2016 Summer Session Graduate; 2017 Summer Session Graduate; 2018 Summer Session Graduate


Contact John C. Schleiffarth

Provide some details about your situation, but remember not to include sensitive information. An attorney-client relationship is only formed once an attorney formally agrees to represent you.

Your Name *

Phone Number

Email Address

Message *

Find an Attorney

Enter your city, state, or Zip code below to locate a qualified attorney who has demonstrated a commitment to defend those accused of DUI and related crimes.

FIND AN ATTORNEYSearch

Members in the SpotlightMembers in
the Spotlight

06/27/2025

Priscilla Frisby

Priscilla Frisby: The NCDD Member in the Spotlight is Priscilla Frisby of Tucson, Arizona. Priscilla has practiced law for approximately 17 years. She speaks fluent Spanish. Priscilla was born in Douglas, Arizona and raised in neighboring Agua Prieta, Sonora, Mexico (across the border from Douglas, Arizona). At the age of 10, her parents bought a house on the United States side,...

Members in the SpotlightLatest from
Our Blog

03/30/2026

AI in Court Filings: The Ethics Line Between Assistance and Abdication

By Ryan Katz It is no secret that Artificial Intelligence, or AI, is vastly changing the landscape of many different fields. While the practice of law is certainly not something anybody would want...

FROM OUR BLOG

AI in Court Filings: The Ethics Line Between Assistance and Abdication

03/30/2026

By Ryan Katz It is no secret that Artificial Intelligence, or AI, is vastly changing the landscape of many different fields. While the practice of law is certainly not something anybody would want to be taken over by AI in any major way, AI is still a tool which has applications for lawyers. Generative AI can help lawyers brainstorm arguments, organize...

Oral Fluid Testing: Roadside vs. Evidential Analyses

09/02/2025

Written by Ashley M. Hart As cannabis is being decriminalized in many states, there has been increased interest in rapid roadside tests to detect THC and other substances for intoxicated driving charges. A majority of states now have oral fluid testing in some form: roadside (presumptive) or evidential (confirmed in a lab). These states include Alabama, Alaska, Arkansas, Arizona, California, Connecticut,...

Back to Top