Delaware’s law enforcement agencies are organized under Title 11 of the Delaware Code and split into four practical layers: the Delaware State Police, which covers the whole state and holds exclusive authority over the most serious crimes; municipal departments that police inside city and town limits; specialized bureaus for things like gaming, alcohol, and financial crime; and campus and transit forces with authority on specific properties. Sheriffs and constables sit outside that policing structure and, by statute, cannot make general arrests.
Delaware State Police
The Delaware State Police (DSP), founded on April 28, 1923, is the state’s primary law enforcement agency and covers all three counties.1Delaware State Police. 100th Anniversary Archives Title 11 makes troopers “conservators of the peace throughout the State,” which gives them the broadest territorial reach of any Delaware agency and makes them the default responder in unincorporated areas and along major highways.2Delaware Code Online. Delaware Code Title 11 – State Police
Certain crimes belong to DSP regardless of where they happen. The statute gives state police exclusive investigative jurisdiction over homicide, suicide, deaths requiring a medical examiner’s investigation, kidnapping, rape, unlawful sexual intercourse, and attempts of any of those offenses.2Delaware Code Online. Delaware Code Title 11 – State Police A homicide inside Wilmington city limits is still a DSP investigation even if a city officer gets there first.
Several specialized units sit inside DSP. The State Bureau of Identification runs criminal records, fingerprinting, and background checks at nine locations across the state.3Delaware State Police. Obtaining a Certified Delaware Criminal History The Division of Gaming Enforcement, staffed by civilian and sworn investigators, handles background and criminal investigations tied to the casino and gaming industry.4Delaware State Police. Division of Gaming Enforcement The Delaware Information and Analysis Center is the state’s designated fusion center, sharing intelligence with federal partners on counterterrorism and public safety.5Delaware State Police. Keeping Delaware Safe A separate Permit to Purchase Section investigates and issues handgun qualified purchaser permits; anyone with a valid concealed carry weapon license from Superior Court is exempt from that permit.6Delaware State Police. Permit to Purchase
Municipal Police Departments
Municipal departments draw their authority from local charters and Title 11 and enforce both state laws and local ordinances inside their city or town boundaries. They handle the bulk of day-to-day policing: theft reports, domestic disturbances, vandalism, traffic incidents, noise complaints, and local ordinance enforcement.
Capability varies sharply by size. Wilmington and Dover run full-service operations with narcotics, investigations, and traffic divisions. Smaller towns may field only a handful of officers and rely on help from neighbors. Title 11 authorizes mutual aid agreements that let one jurisdiction’s officers enter another during emergencies or on prearranged terms, which is how small departments and even DSP backfill each other on complex calls.7Delaware Code Online. Delaware Code Title 11 – Police Mutual Assistance Act
Chiefs are typically appointed by city councils or mayors, and funding runs through local government. Every Delaware police agency, state and local alike, faces a 2028 deadline to achieve accreditation through the Delaware Police Accreditation Commission, which has adopted more than 100 professional policing standards.8Police Officer Standards and Training Commission. About the Delaware Police Accreditation Commission
Campus and Transit Police
A handful of agencies hold policing authority on specific properties. The Delaware River and Bay Authority Police Department covers the Delaware Memorial Bridge, the Cape May–Lewes Ferry, and the Authority’s airport facilities.9Delaware River and Bay Authority. Police The University of Delaware Police Division and the Delaware State University Police Department are recognized as law enforcement jurisdictions under Title 11, and their officers qualify as law-enforcement officers with authority to enforce state laws in their defined areas. Both can also sign mutual aid agreements with surrounding departments.7Delaware Code Online. Delaware Code Title 11 – Police Mutual Assistance Act
Sheriffs and Constables Are Not Patrol Officers
Delaware is unusual on this point and it trips people up. Sheriffs and deputy sheriffs have no arrest authority. Title 10 states it directly, and 2012 legislation amended multiple code titles to make the restriction unmistakable.10Delaware Code Online. Delaware Code Title 10 – Chapter 21 Sheriff11Delaware General Assembly. Delaware Session Laws – Chapter 266, Formerly House Bill No. 325 A narrow exception lets a sheriff or deputy take a person into custody and transport them when specifically ordered to do so by a judge or commissioner of Superior Court.
What Delaware’s three elected county sheriffs actually do is civil process work for the courts: serving legal documents, enforcing court orders, and executing writs tied to evictions, foreclosures, and property seizures, including the public auctions that follow foreclosures.12Delaware State Courts. New Castle County Office of the Sheriff – Sheriff Sales and Post-Foreclosure Procedures
Justice of the peace constables are appointed, not elected, and work inside the Justice of the Peace Court system. Their duties are listed exhaustively by statute: executing warrants and orders from a justice of the peace, serving civil summonses and subpoenas, carrying out writs of possession, transporting detainees, conducting court levies and sales, and keeping courtrooms secure.13Delaware Code Online. Delaware Code Title 10 – Chapter 28 – Justice of the Peace Constables A constable may arrest someone who breaches the peace or commits contempt inside the courtroom, but has no general policing power.
Specialized Investigation Bureaus
Alcohol, Tobacco, and Marijuana
The Division of Alcohol and Tobacco Enforcement operates under Title 4 with statewide jurisdiction. DATE agents investigate liquor and marijuana violations, inspect licensed bars, stores, and clubs, and can make arrests. At the discretion of the Secretary of the Department of Safety and Homeland Security, DATE officers hold the same police powers as other state officers and serve as conservators of the peace throughout Delaware.14Delaware Code Online. Delaware Code Title 4 – Division of Alcohol and Tobacco Enforcement Title 4 separately bars anyone from selling alcohol to a person under 21.15Delaware Code Online. Delaware Code Title 4 Chapter 7 – Regulatory Provisions
Financial and Economic Crime
The Delaware Department of Justice’s Fraud and Consumer Protection Division runs several investigative units. The Investor Protection Unit regulates securities firms and professionals operating in Delaware and investigates investment fraud. The White Collar Crime Unit covers embezzlement, money laundering, insurance fraud, state tax fraud, and employer wage theft, with particular focus on crimes against seniors and vulnerable adults. The Medicaid Fraud Control Unit targets provider fraud, medication diversion, and abuse or exploitation of patients in care facilities. These units often coordinate with federal counterparts like the SEC and FTC.16Delaware Department of Justice. Fraud and Consumer Protection Division
Officer Training and Certification
Every Delaware officer has to meet standards set by the Police Officer Standards and Training Commission (POST). Full-time officers must be at least 21 (seasonal officers, 18), hold U.S. citizenship, and have a high school diploma or equivalent. Candidates pass a physical fitness exam, vision and hearing tests, a drug screening covering nine categories, and a psychological evaluation. A felony conviction, or any misdemeanor that would bar someone from possessing a weapon, disqualifies an applicant.17Police Officer Standards and Training Commission. Initial Certification Requirements
After hiring, officers must complete a basic training academy with a mandatory curriculum of 584 hours before they can serve. The requirement applies to all police officer appointments except seasonal ones.18Delaware Regulations. 801 Regulations of the Delaware Council on Police Training POST also oversees agency accreditation, body-worn camera standards, and ongoing compliance.
Use of Force Rules
Two recent laws reshaped what officers may do and how it gets recorded. House Bill 350, signed in August 2020, created the crime of aggravated strangulation. An officer who knowingly uses a chokehold in an official capacity faces a Class D felony, which rises to a Class C felony if the chokehold causes serious physical injury or death. The lone exception: a chokehold is justifiable when the officer reasonably believes deadly force is warranted to protect the life of a civilian or another officer.19Delaware General Assembly. Delaware House Bill 350 – Bill Detail
House Bill 195, passed in 2021, requires body-worn cameras for law enforcement officers and for certain employees of the Department of Correction and the Department of Services for Children, Youth and Their Families whose roles involve public interaction. POST sets the standards for activation, training, storage, and release of footage. Rollout has been uneven. As of early 2026, POST was reviewing its body camera regulations with plans to open updated rules for public comment, and agency compliance was still a work in progress.
Arrests, Searches, and Pretrial Detention
Officers may arrest with or without a warrant depending on the offense. A warrantless felony arrest is lawful whenever an officer has reasonable grounds to believe the person committed a felony, whether or not the officer saw it. For misdemeanors, warrantless arrest is allowed when the offense happens in the officer’s presence, involves physical injury or a threat of it, involves illegal sexual contact, involves shoplifting observed by a store employee, or occurs on school property. Officers may also arrest without a warrant for probation violations when they have reasonable grounds to believe a probationer committed a new offense.20Justia Law. Delaware Code Title 11 – Section 1904 Arrest Without Warrant
Search and seizure rules sit in Title 11, Chapter 23. The baseline is simple: no search of a person, building, vehicle, or place without the owner’s consent unless a statute or the U.S. Constitution authorizes it.21Delaware Code Online. Delaware Code Title 11, Chapter 23 – Search and Seizure Two statutory exceptions matter most in practice. Officers in hot pursuit may search for a person they are actively chasing if they have probable cause to believe that person committed a felony or misdemeanor. After a lawful arrest, officers may search for evidence of the crime, weapons, tools that could aid escape, and anything connected to the offense. The federal automobile exception also applies, letting officers search a vehicle without a warrant when they have probable cause to believe it holds contraband or evidence.
After arrest, a detainee is booked, fingerprinted, and brought before a magistrate for a bail determination. Most defendants can secure release by posting bail. Effective July 1, 2026, Delaware’s preventive detention framework allows courts to hold certain defendants without bail based on public safety. The eligible list covers all Class A felonies plus specific charges including first-degree assault, manslaughter, rape, kidnapping, first-degree arson, first-degree robbery, first-degree burglary, stalking, child exploitation, human trafficking, and possession of a firearm during commission of a felony.22Delaware Code Online. Delaware Code Title 11 – Chapter 21 Bail Defendants who cannot post bail and do not qualify for release are held in county detention facilities operated by the Department of Correction.
Filing a Complaint or Suing for Misconduct
Complaints against officers normally start with the officer’s own department through its internal affairs unit. Delaware’s Law Enforcement Officers’ Bill of Rights, in Title 11, Chapter 92, governs how those investigations proceed, and records compiled during an internal investigation are generally confidential. Any collective bargaining agreement that tries to extend confidentiality beyond what LEOBOR allows is void as against public policy.23Delaware Code Online. Delaware Code Title 11 Chapter 92 – Police Officers Due Process, Accountability, and Transparency
Reforms since August 2023 have opened narrow windows. Agencies must forward a detailed narrative to the Criminal Justice Council within 30 days of completing a formal investigation involving an officer who discharged a firearm at someone, used force resulting in serious physical injury, was found to have engaged in sexual assault or harassment, committed dishonest conduct, or committed domestic violence. Every agency must also publish annual data to the CJC on public and internal misconduct complaints, findings, and discipline. New hires are required to sign agreements letting their personnel files and disciplinary records follow them to any future law enforcement employer.23Delaware Code Online. Delaware Code Title 11 Chapter 92 – Police Officers Due Process, Accountability, and Transparency
If an internal process does not resolve a complaint, the Division of Civil Rights and Public Trust inside the Delaware Department of Justice investigates use of force, officer-involved shootings, and matters where the DOJ’s other work could create a conflict. Its shooting investigations decide whether an officer’s use of force was criminal; the division does not write or enforce departmental use-of-force policy.24Delaware Department of Justice. Division of Civil Rights and Public Trust
Civil suits are available under federal law. Section 1983 of Title 42 of the U.S. Code lets anyone whose constitutional rights were violated by someone acting under state authority sue for damages, which in practice covers claims of unlawful arrest, excessive force, and other deprivations of rights by police officers.25Office of the Law Revision Counsel. 42 U.S. Code 1983 – Civil Action for Deprivation of Rights Appeals from wrongful convictions or procedural errors in criminal cases go to the Delaware Supreme Court.