
The Justice Department has taken Maryland to federal court, arguing the state’s new “sanctuary” law lets dangerous illegal immigrants walk free instead of going to immigration officers.
Story Snapshot
- The Department of Justice (DOJ) is suing Maryland over its new Community Trust Act, calling it an illegal sanctuary policy that blocks federal immigration enforcement.
- Federal lawyers say Maryland jails have refused to transfer illegal immigrants to federal custody even when immigration officers issue standard detainer requests.
- Maryland leaders and activists insist the law only blocks state help for civil immigration work and claim it improves trust and safety in immigrant neighborhoods.
- The clash sets up a key constitutional fight over the Supremacy Clause and whether states can restrict cooperation with federal immigration enforcement.
What The DOJ Says Maryland Is Doing Wrong
On July 9, 2026, the Department of Justice filed a lawsuit in federal court, case number 1:26-cv-02719-MJM, against the State of Maryland and Attorney General Anthony Brown. Federal lawyers say Maryland’s immigration “sanctuary” rules are not just bad policy but violate the United States Constitution. They argue the rules block federal immigration officers from taking custody of illegal immigrants, even when officers issue routine detainer notices asking local jails to hold or transfer people.
The complaint claims Maryland correctional facilities have refused to help with transfers into federal custody, creating what DOJ calls “operational consequences” for enforcement. Officials say this means some immigrants accused of serious crimes are released back into communities instead of being turned over to federal authorities. DOJ argues that under the Supremacy Clause, federal immigration law overrides any state rule that stands in the way of national enforcement. The suit is part of a broader push that includes about twenty similar cases against other sanctuary jurisdictions.
Inside Maryland’s Community Trust Act
Maryland’s Community Trust Act, passed as Senate Bill 791 and now Chapter 872 of state law, sharply limits how much local police and correctional staff may help federal immigration officers. The law bars local correctional facilities from holding someone past their release time solely for a civil immigration issue or based only on an immigration detainer, unless there is a valid judicial warrant. It also restricts staff from asking about citizenship or immigration status during everyday police work, such as traffic stops or routine arrests.
The Act goes further by blocking jail staff from proactively notifying immigration officers when someone is in custody and from transferring people into federal custody without a judicial warrant, with only narrow exceptions. Civil rights groups state that the law “stops police and jail staff from proactively notifying” federal immigration officers or helping with civil immigration arrests, while still allowing enforcement in serious or violent crime cases. Supporters argue it keeps local resources focused on criminal law, not civil immigration, and claim it helps immigrant witnesses report crimes without fear.
Supporters Call It Safety And “Trust”; Critics See A Sanctuary Shield
Backers of the Community Trust Act, including immigrant advocacy groups, say the law draws a clean line between criminal law enforcement and civil immigration enforcement. They argue federal immigration officers remain free to do their jobs in Maryland, but state and local agencies should not spend their budgets or staff on federal civil work. Advocates claim that when local police act like immigration agents, immigrant families stop talking to officers, crimes go unreported, and neighborhoods become less safe for everyone.
Groups that pushed the bill openly promoted it as a way to “end police cooperation and partnership” with immigration authorities, including programs that let local officers help enforce immigration rules. Their agenda includes banning officers from asking about immigration status, detaining people on detainers, or notifying or transferring anyone to immigration custody in most cases. Sheriffs inside Maryland have already sued over the law, warning it ties their hands, though they note narrow exceptions when they may notify immigration officers about convicted felons or registered sex offenders.
A Bigger Constitutional Showdown Over Federal Power And State Resistance
The Justice Department’s own public list of sanctuary jurisdictions now includes Maryland, along with major cities like Boston, Newark, and Philadelphia, for having policies that “impede” federal immigration enforcement. The Maryland case fits into a larger pattern of clashes between the Trump administration and states or cities that limit cooperation with immigration officers. In this second Trump term, DOJ has repeatedly argued that sanctuary rules unlawfully obstruct federal law and must give way under the Supremacy Clause. Legal scholars and city attorneys, however, say states have the right to refuse to volunteer local officers for federal duties.
Critics in the media and legal world often frame these lawsuits as political, describing them as part of a “mandate to control immigration” rather than simple law enforcement. Some point to earlier cases, such as litigation over sanctuary policies in Boston, where a federal judge questioned DOJ’s legal theory and signaled the case might be dismissed. Policy papers from legal researchers argue sanctuary measures do not block federal officers from doing their jobs but instead set limits on how local governments use their own resources. The Maryland lawsuit will now test those arguments in a new, high-profile battleground state.
Sources:
townhall.com, justice.gov, facebook.com, youtube.com, cbsnews.com, bostonglobe.com, nbcboston.com, aila.org, constitutioncenter.org












