Robert C. Bonsib, Esq.

MarcusBonsib, LLC

6411 Ivy Lane, Suite 116, Greenbelt, Maryland 20770

(301) 441-3000 (office)

(301) 509-5100 (cell) (email) (website)

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From Robert C. Bonsib, Esq.

Over the years I've written many articles and presented continuing legal education programs regarding the practice of criminal law and the defense of criminal matters in the federal courts of Maryland and the District of Columbia and criminal matters the State of Maryland.

I've developed this site to serve as resource to criminal defense attorneys and others who are interested in criminal law, and in particular, criminal defense issues. 

Many of these articles were original published in local bar newsletters, on my website at or in my blog.

I've also provided links to a variety of sources that may be of assistance to lawyers and others with matter pending in the state and federal trial and appellate courts of Maryland and the District of Columbia.  Please go to my firm website for additional information regarding myself, my Firm and for additional legal resource materials.

(Click here - 


Robert C. Bonsib, Esq. has over 45 years of experience in criminal law.  From 1974-1987 he served as both an Assistant and Deputy State's Attorney in Prince George's County, Maryland.  From 1987-1990 he served as an Assistant United States Attorney for the District of Maryland.  Since 1990 he has been partner in the firm of MarcusBonsib, LLC in Greenbelt, Maryland where he concentrates his practice in the defense of federal and state criminal matters.

He is a Fellow of the American College of Trial Lawyers, recognized by Best Lawyers of America in the areas of white-collar and non-white collar criminal defense.  Since 2002 he has been repeatedly recognized by Washingtonian Magazine as one of the top lawyers in the Washington, DC-Maryland area.  In 2018 he was recognized by SuperLawyers as one of the top 100 lawyers in both Maryland and the District of Columbia. 

For additional information about Robert C. Bonsib, Esq. and MarcusBonsib, LLC. - please click to go to my website -

 This is an index to the articles and links available through this website.  My colleagues at the bar, those with questions about criminal law issues and those with the need for the assistance of a criminal lawyer are welcome to call me on my cell at 301-509-5100 or email me at with any questions regarding criminal law and criminal procedure matters.  [This is a new site as of April 21, 2018.  I will be adding a significant number of materials over the next few weeks.  I encourage you to check back on a regular basis for new additions to this site.]

Busted!  On Odor of Weed - Lewis v. State

Battered Spouse Syndrome - Defense in Murder-Manslaughter-Homicide Case?

Pretrial/Photo Identification - Unreliability-Mistaken-False - Law and Factors

Constructive Possession - Part I

Constructive Possession - Part II

Cell Phone Search Warrants: Probable Cause Nexus

Heroin/Fentanyl/Opiate Deaths: Murder or Manslaughter?

Expert and Lay Opinion Testimony

Child Pornography Investigations and Prosecutions

Odor of Marihuana - Search of Persons/Automobiles