Law enforcement in Delaware is split among several types of agencies, each with a defined lane. The Delaware State Police cover the whole state and hold exclusive authority over the most serious crimes. Municipal departments handle everyday policing inside city and town limits. Specialized bureaus enforce alcohol, tobacco, marijuana, gaming, and financial-crime laws. Campus and bridge-authority officers police their own territory. Sheriffs and constables, despite the name, do not make general arrests in Delaware; they work for the courts. Most of the rules that shape all of this sit in Title 11 of the Delaware Code.
Delaware State Police
The Delaware State Police (DSP) was founded on April 28, 1923 and operates across all three counties: New Castle, Kent, and Sussex.1Delaware State Police. 100th Anniversary Archives Title 11 makes troopers “conservators of the peace throughout the State,” which gives them the broadest policing authority of any Delaware agency.2Delaware Code Online. Delaware Code Title 11 – State Police They are the primary responders in unincorporated areas and along major highways, and they can go anywhere in the state.
Certain crimes belong to DSP no matter where they happen. The statute grants exclusive investigative jurisdiction over homicide, suicide, deaths that require 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 If a homicide occurs inside Wilmington, a city officer may arrive first, but DSP runs the investigation.
Several units sit under the DSP umbrella. The State Bureau of Identification handles criminal records, fingerprinting, and background checks at nine locations across Delaware.3Delaware State Police. Obtaining a Certified Delaware Criminal History The Division of Gaming Enforcement uses civilian and sworn investigators to police Delaware’s casino and gaming industry through background checks, criminal investigations, and intelligence work.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 The Permit to Purchase Section handles handgun qualified purchaser permits; holders of a valid concealed carry weapon license from Superior Court are exempt.6Delaware State Police. Permit to Purchase DSP also assists the Delaware Emergency Management Agency during evacuations and natural disasters.
Municipal Police Departments
Municipal departments get their authority from local charters and Title 11, and they enforce state laws and local ordinances inside their city or town. This is where most day-to-day policing happens: theft, domestic disturbances, vandalism, traffic, noise complaints.
Size varies. Wilmington and Dover run full-service departments with divisions for narcotics, criminal investigations, and traffic. Smaller towns may have a handful of officers and lean on mutual aid. Title 11 authorizes police mutual assistance agreements, letting one jurisdiction’s officers enter another during emergencies or under prearranged terms.7Delaware Code Online. Delaware Code Title 11 – Police Mutual Assistance Act When a small department is overwhelmed, neighboring agencies or DSP can step in under those arrangements.
Every Delaware police agency faces a 2028 deadline to earn state accreditation through the Delaware Police Accreditation Commission, which has adopted more than 100 professional standards.8Police Officer Standards and Training Commission. About the Delaware Police Accreditation Commission
Campus and Transit Police
Delaware also recognizes several agencies whose authority is tied to specific settings. 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 can enforce state laws within their areas of responsibility. They can also enter mutual aid agreements with surrounding jurisdictions.7Delaware Code Online. Delaware Code Title 11 – Police Mutual Assistance Act
Sheriffs and Constables
This is where Delaware breaks from what many people expect. Sheriffs and deputy sheriffs in Delaware have no arrest authority. Title 10 states it directly, and 2012 legislation amended multiple code titles to reinforce the point.10Delaware Code Online. Delaware Code Title 10 – Chapter 21 Sheriff11Delaware General Assembly. Delaware Session Laws – Chapter 266, Formerly House Bill No. 325 One narrow exception exists: a sheriff or deputy may take a person into custody and transport them when specifically ordered by a Superior Court judge or commissioner.
Each of Delaware’s three counties has an elected sheriff, and the office functions as an arm of the courts. Deputies serve legal documents, enforce court orders, and execute writs tied to evictions, foreclosures, and property seizures. Foreclosed properties are sold at public sheriff’s auctions run by the county sheriff’s office.12Delaware State Courts. New Castle County Office of the Sheriff – Sheriff Sales and Post-Foreclosure Procedures
Justice of the peace constables are similarly limited. They are appointed, not elected, and their duties are set 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 to correctional facilities, conducting court levies and sales, and maintaining court security.13Delaware Code Online. Delaware Code Title 10 – Chapter 28 – Justice of the Peace Constables A constable may arrest someone who commits a breach of the peace or contempt inside the courtroom, but their powers do not extend to general policing.
Specialized State Bureaus
Alcohol, Tobacco, and Marijuana
The Division of Alcohol and Tobacco Enforcement (DATE) operates under Title 4 with statewide jurisdiction. Its agents investigate liquor and marijuana violations, conduct administrative inspections of bars, stores, and clubs, and can make arrests.14Delaware Code Online. Delaware Code Title 4 – Division of Alcohol and Tobacco Enforcement At the Secretary of Safety and Homeland Security’s discretion, DATE officers hold the same police powers as other state officers and serve as conservators of the peace throughout Delaware. Title 4 separately bars any person or licensee from selling alcohol to anyone under 21.15Delaware Code Online. Delaware Code Title 4 Chapter 7 – Regulatory Provisions
Financial and Cyber Crime
The Delaware Department of Justice’s Fraud and Consumer Protection Division houses several units targeting economic crime. The Investor Protection Unit regulates securities firms and investigates investment fraud. The White Collar Crime Unit handles embezzlement, money laundering, insurance fraud, state tax fraud, and employer wage theft, with a focus on crimes against seniors and vulnerable adults. A separate Medicaid Fraud Control Unit pursues provider fraud, medication diversion, and abuse or exploitation of patients in care facilities.16Delaware Department of Justice. Fraud and Consumer Protection Division These units coordinate with federal agencies like the SEC and FTC on cross-jurisdictional cases.
Officer Training and Certification
Every police officer in Delaware must meet requirements set by the Police Officer Standards and Training Commission (POST). Full-time officers must be at least 21 (seasonal officers, 18), be U.S. citizens, and hold a high school diploma or equivalent. Candidates go through a physical fitness exam, vision and hearing testing, a drug screening covering nine categories of substances, and a psychological evaluation. A felony conviction, or any misdemeanor that would bar the applicant from possessing a weapon, is disqualifying.17Police Officer Standards and Training Commission. Initial Certification Requirements
Once hired, officers must complete a basic training academy with a mandatory 584-hour curriculum before they can serve. This applies to all appointments except seasonal positions.18Delaware Regulations. 801 Regulations of the Delaware Council on Police Training POST also oversees accreditation, body-worn camera standards, and ongoing compliance.
Use of Force and Body Cameras
House Bill 350, signed in August 2020, created the crime of aggravated strangulation. A law enforcement officer who knowingly uses a chokehold in an official capacity faces a Class D felony, which escalates to a Class C felony if the chokehold causes serious physical injury or death. A chokehold is justifiable only 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 Department of Correction and DSCYF employees whose roles involve public interaction. POST sets standards for activation, training, storage, and release of footage. As of early 2026, POST was conducting a comprehensive review of its body camera regulations with plans to open updated rules for public comment, and compliance across agencies remained a work in progress.
Arrest, Search, and Bail
Delaware officers can arrest with or without a warrant, depending on the situation. 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, an officer can arrest without a warrant when the offense occurs in the officer’s presence, involves physical injury or a threat of physical injury, involves illegal sexual contact, involves shoplifting observed by a store employee, or occurs on school property. Officers may also arrest without a warrant for a probation violation when they have reasonable grounds to believe the person committed a new offense during probation.20Justia Law. Delaware Code Title 11 – Section 1904 Arrest Without Warrant Miranda warnings apply as a federal constitutional requirement; a statement taken during custodial interrogation without them is generally inadmissible in Delaware courts.
Search and seizure rules sit in Title 11, Chapter 23. The baseline: no one may search 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. Under hot pursuit, officers may search for a person they are actively pursuing if they have probable cause to believe that person committed a felony or misdemeanor. Under search incident to arrest, officers may search after a lawful arrest for evidence of the crime, weapons, tools that could aid escape, and anything connected to the offense. The federal automobile exception also applies, allowing a warrantless vehicle search when officers have probable cause to believe the vehicle contains 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 lets courts hold certain defendants without bail based on public safety concerns. Detention-eligible offenses include all Class A felonies, along with 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, among others.22Delaware Code Online. Delaware Code Title 11 – Chapter 21 Bail Defendants held pretrial stay in county facilities operated by the Department of Correction and keep rights to medical care, counsel, and humane treatment.
Filing a Complaint Against an Officer
Complaints usually start with the officer’s own department through its internal affairs division. Delaware’s Law Enforcement Officers’ Bill of Rights (LEOBOR), in Title 11, Chapter 92, governs how those investigations proceed. Records compiled during an internal investigation are generally confidential and cannot be released to the public. 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
Recent reforms have opened limited windows into the process. Beginning in August 2023, an agency that completes 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, engaged in dishonest conduct, or committed domestic violence must forward a detailed narrative to the Criminal Justice Council (CJC) within 30 days. Every agency must also publish annual data to the CJC on public and internal misconduct complaints, findings, and discipline. New hires must sign agreements allowing their personnel files and disciplinary records to follow them to any future law enforcement employer.23Delaware Code Online. Delaware Code Title 11 Chapter 92 – Police Officers Due Process, Accountability, and Transparency
Beyond the department, the Division of Civil Rights and Public Trust within the Delaware Department of Justice investigates use of force, officer-involved shootings, and matters where the DOJ’s other responsibilities could create the appearance of a conflict of interest. Its shooting investigations determine whether an officer’s use of force was criminal; the division does not set or enforce internal departmental use-of-force policies.24Delaware Department of Justice. Division of Civil Rights and Public Trust
Civil suits are the other route. Under 42 U.S.C. § 1983, anyone whose constitutional rights were violated by someone acting under state authority can sue for damages, which in practice covers unlawful arrest, excessive force, and other rights violations by police.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.