Middlesex County Prosecutor's Office: What Defendants Should Know
Reviewed by William A. Proetta, Esq. · Updated
The Middlesex County Prosecutor’s Office (MCPO) is the county agency that prosecutes indictable crimes committed in Middlesex County, from its offices on the third floor of the Public Safety Building at 25 Kirkpatrick Street in New Brunswick (732-745-3300). If you have been charged with a crime in Edison, Woodbridge, Sayreville or any other Middlesex town, or a detective from this office has asked to speak with you, the decisions that matter most in your case will be made here.
Local police make most arrests, but once a complaint charges a crime of the first through fourth degree, the file moves to the MCPO. Its assistant prosecutors decide whether to pursue the charge, reduce it, offer a plea, consent to diversion, or seek to hold someone in jail before trial. We deal with this office regularly from our Edison office, and in more than 15 years of criminal trial work I have found that understanding how it is organized is the first step in negotiating with it.
At a Glance
- Address: Public Safety Building, 3rd Floor, 25 Kirkpatrick Street, New Brunswick, NJ 08901
- Main phone: 732-745-3300
- Prosecutor: Linda Estremera, sworn in December 31, 2025
- Court where its cases are heard: Middlesex County Superior Court, Criminal Division, New Brunswick (732-645-4300)
- Victim-witness services: every county prosecutor’s office in New Jersey has an Office of Victim Witness Advocacy; the MCPO main line is the place to ask
Who Leads the Office
Linda Estremera was nominated by Governor Murphy in December 2025 and sworn in as Middlesex County Prosecutor on December 31, 2025, with a ceremonial oath in February 2026 at Middlesex College. She had served as deputy first assistant prosecutor before her appointment. She is the first Hispanic woman to hold the post. Policy priorities in a prosecutor’s office can shift with new leadership, which is one reason we track how offers and diversion decisions are being made now rather than relying on how they were made years ago.
How the Office Is Organized
The county lists its sections and units publicly. The ones defendants encounter most often are below, using the county’s own names.
MCPO sections and the units defendants meet
Middlesex County Prosecutor’s Office, 25 Kirkpatrick Street, New Brunswick, using the county’s own section and unit names.
- Homicides and police-involved shootings
- Fatal and serious-injury crashes where criminal fault is established
- Drug and gun trafficking, gang activity
- Sexual offenses and child abuse
- Domestic violence cases
- DV restraining-order contempt in the Family Part
- Registration tiering
- Internet crimes against children
- Victims aged 60 and older
- Trials and appeals
- An assistant prosecutor assigned to Recovery Court
- Family Court delinquency cases and diversion
- Bias incidents
- Digital evidence and forensics
- People who fail to appear in Superior Court
- White-collar crime and public corruption
- Insurance fraud
- Arson
Drug cases are generally investigated by the Task Force rather than a separately named narcotics unit. Not every county assigns domestic violence to its special victims unit.
Drug cases are generally investigated by the Task Force rather than a separately named narcotics unit; see our page on Middlesex drug charges. In Middlesex, the Special Victims Unit also prosecutes domestic violence cases, both the criminal charges and restraining-order contempt cases heard in the Family Part. Not every county assigns domestic violence to its special victims unit. Both tracks are covered on our Middlesex domestic violence page. Allegations involving children or sexual offenses go to the same unit; its sex-offense work is discussed on our Middlesex sex crimes page.
What the Prosecutor Decides at Each Stage
Where the prosecutor’s choices come
From screening the complaint to the plea cutoff. Each decision is made by an assistant prosecutor at the MCPO.
For Recovery Court applicants, the prosecutor must also indicate Track One or Track Two under Directive #01-23.
Screening the complaint. After an arrest in Woodbridge or a summons in New Brunswick, an assistant prosecutor reviews the charge. The office can proceed as written, amend the charge, or downgrade it to a disorderly persons offense and remand it to the municipal court in the town where it arose. A remand is often the single best early result in a lower-level indictable case.
Detention motions. Under N.J.S.A. 2A:162-19(a), the prosecutor may move for pretrial detention at any time. When a motion is filed before the first appearance, the person stays in jail until the detention hearing. Our page on first appearances and detention hearings explains the standard and the timing.
Plea offers. Offers can come before indictment, at the pre-indictment conference, or in writing with the indictment itself, which R. 3:9-1 contemplates along with the initial discovery. After the pretrial conference and a trial date, R. 3:9-3(g) bars the court from accepting negotiated pleas without the Criminal Presiding Judge’s approval, so the pretrial conference effectively closes the bargaining window.
Grand jury. The office decides what evidence a grand jury hears and asks it to indict. At least 12 grand jurors must vote to return an indictment.
PTI consent. For Pretrial Intervention, the prosecutor’s consent is required before an applicant can even be considered if the charge carries a presumption of incarceration or a mandatory minimum, or if the person has a prior New Jersey indictable conviction, under R. 3:28-1(d). A prosecutor’s rejection can be challenged by motion within ten days of receipt, but under R. 3:28-6 the court overturns it only for a “patent and gross abuse of discretion.” Our Middlesex PTI page covers the application.
Recovery Court tracks. For Recovery Court applicants, the prosecutor must indicate whether the case belongs on Track One (special probation) or Track Two (ordinary probation), under Directive #01-23, which also limits the legal rejection reasons that may be used. An assistant prosecutor is assigned to work with the program; see our Middlesex Recovery Court page.
Failure to appear. The Fugitive Unit pursues people who miss Superior Court dates. A missed date turns a manageable case into one with a warrant, so if you have missed one, call a lawyer before you do anything else.
If a Detective Calls You
A message from an MCPO detective, or from a local officer working with the office, usually means you are a witness, a target, or somewhere in between, and the caller may not say which. You are not required to go in for an interview. Anything said in that room can be used as evidence, including statements meant to clear things up. Before you return the call:
- Write down the detective’s name, unit and phone number, and do not discuss the facts.
- Say politely that your lawyer will be in touch.
- Call a defense lawyer, who can contact the detective, learn what the investigation is about, and decide whether any statement makes sense.
A detective called me in Middlesex County: what to do
A detective from the Middlesex County Prosecutor’s Office, or a local officer working with it- Write down the detective’s name, unit and phone number, and do not discuss the facts.
- Say politely that your lawyer will be in touch.
- Call a defense lawyer, who can contact the detective, learn what the investigation is about, and decide whether any statement makes sense.
Edison office, 3840 Park Ave, Suite 202A · free case review 24/7
Our guide to police questioning explains your rights during an interview, including the right to stop answering at any point.
What Families Should Know
The MCPO does not represent the defendant, and its victim-witness staff work with complaining witnesses, not the accused. Families should not call the assistant prosecutor to explain or vouch for a loved one; letters and records showing work history, treatment or community ties are far more useful when a defense lawyer presents them at the right moment. If a no-contact order is in place, do not carry messages between the defendant and the alleged victim.
How We Work With This Office
Negotiating with the MCPO is a matter of timing and information. Early on, we present facts the police report leaves out, such as video, witnesses or a client’s background, while a downgrade or diversion is still on the table. We challenge detention motions with a full picture of the person. After indictment, we use the discovery and motion practice to test the State’s evidence and push for a better offer before the plea cutoff. You can read more about our Edison criminal defense practice.
Middlesex County Prosecutor’s Office FAQs
Who is the Middlesex County Prosecutor?
Linda Estremera, who was sworn in on December 31, 2025.
Where is the Middlesex County Prosecutor’s Office located?
On the third floor of the Public Safety Building, 25 Kirkpatrick Street, New Brunswick, NJ 08901. The phone number is 732-745-3300.
Can the Middlesex prosecutor send my case back to municipal court?
Yes. The office can downgrade an indictable complaint to a disorderly persons offense and remand it to the town court, such as Edison or Woodbridge.
Does the prosecutor have to agree to PTI?
Not in every case, but consent is required for charges with a presumption of incarceration or a mandatory minimum and for applicants with a prior New Jersey indictable conviction.
Should I talk to a Middlesex County detective who wants to ask me questions?
Not before speaking with a defense lawyer. You have the right to decline the interview.
Which MCPO unit handles domestic violence cases?
In Middlesex, the Special Victims Unit. It prosecutes domestic violence charges and the contempt cases for violating a restraining order, which are heard in the Family Part at 120 New Street.
Speak With a Defense Lawyer Before the Prosecutor Decides
The earlier we reach the assistant prosecutor, the more options remain. Call our Edison office at (732) 659-9600, any time, for a free consultation, or contact us online. Se habla español.