Practicing in the areas of DUI, Criminal Defense and Workers’ Compensation, the experienced lawyers at Plains Law Offices will provide you with aggressive legal representation.

Plains Law Offices, LLP was founded by Erin E. Mercer and Kenneth DeCock in 2004. Kenneth DeCock served as a peace officer for 14 years before becoming an attorney in 2001; he has extensive trial experience as both prosecutor and defense counsel. Erin E. Mercer was a Registered Nurse and managed the workers’ compensation department of a large Colorado firm before becoming a member of the Wyoming State Bar.

Located in Sheridan, Wyoming, Plains Law Offices, LLP serves clients in Sheridan, Buffalo, Gillette, Casper, Sundance, Worland and across the State of Wyoming.

DUI & Criminal Defense | Workers’ Compensation

Plains Law Offices, LLP - DUI, Criminal Defense, Workers' Compensation

If you need legal representation, contact us today!

* * * FREE CONSULTATION * * *


DUI & Criminal Defense:

If you are facing DUI or other criminal charges, you need a criminal defense attorney that will protect your rights and aggressively defend you. Understanding the Wyoming legal process and making wise, informed decisions will bring you the best results. For a DUI & criminal defense lawyer who has extensive knowledge and experience, and will take the time to explain the law to you, contact Plains Law Offices.

Wyoming Workers’ Compensation:

If you have you been denied Workers’ Compensation benefits you require an aggressive, proactive lawyer with years of experience working with the Wyoming Workers’ Compensation system. With knowledge of the legal and medical fields, we can help you obtain the benefits you are entitled to.


Experienced, Awarding Winning Wyoming Attorneys:

Our experienced and dedicated attorneys, Kenneth DeCock*  and Erin E. Mercer, will take the time to fully understand your situation and objectives. They will aggressively and proactively represent you throughout the legal process.

***** FIVE STAR REVIEWS: *****

An Awesome Law Office: “Plains Law Offices, LLP are wonderful. They work hard, care about their clients, and it shows. They are professional and very knowledgeable. They strive to help their clients receive the best they deserve within the scope of the law and are not afraid to say when something is not in the client’s best interest or if it is in a “grey area” of the law. In the court room, they are spectacular. It is like poetry in motion. They make the client feel empowered and very much supported. HIGHLY recommend!!!” Marie P.

Wow! Mr DeCock, a working man’s attorney… “When life event happen and you need an attorney, you make some contacts, ask some questions, and then hope the attorney you hire will do more than collect state’s evidence and file motions for the thousands you pay. I can tell you from experience, Mr DeCock provides more information and reassurance during consult than most do after you have retained them. He is prompt to respond to questions (less than 24-hours), he analyzes and picks apart evidence presented against you, actually listens and believes what you are telling him, and makes you feel confident and at ease. Very refreshing. Thanks! You certainly have my endorsement.” Patrick

* Kenneth DeCock was named a “Top 100 Criminal Trial Attorney” in 2015 and 2016 by The National Trial Lawyers, Inc. He was also awarded the prestigious “Top 10 Attorney” award for the State of Wyoming in 2015 by the National Academy of Criminal Defense Attorneys. In 2016 Kenneth was invited to become a member of the American Association of Premier DUI Attorneys. This year, 2017, Kenneth was honored as a Lawyer of Distinction and recognized for his lifetime achievements as an attorney.