Arrested in New Jersey and Taken to Jail? Here’s What You Need to Know

If a friend or family member has been arrested and taken to jail New Jersey, you’re likely overwhelmed, confused, and unsure of what happens next. As a criminal defense attorney, I’ve helped thousands of clients through this exact moment. Here is what you need to know about the process and what to expect.

What Is a Complaint Warrant?

When someone is charged with a crime in New Jersey, it can happen one of two ways:

1. Complaint Summons – You are charged but not necessarily arrested. You receive paperwork with a court date or you are brought to the station to be processed and released.
2. Complaint Warrant – You are arrested and taken into custody. You don’t go home.

So why a Warrant and not a Summons? There is some mystery to this, but what we are told is that New Jersey uses a set of risk-based criteria to determine if a complaint should be on a Warrant or a Summons. Some charges are automatically issued on a Warrant, some are presumptively on a Warrant and some are left to the discretion of the issuing officer.

What Happens After the Arrest?

Once you’re arrested on a complaint warrant in New Jersey, here’s the general timeline:

1. Initial Processing. You’ll be fingerprinted, photographed, and entered into the system. The arresting agency then transfers you to the county jail, where you await your first court appearance.
2. First Appearance: Your first appearance is called Central Judicial Processing (CJP). Within 24–48 hours, you will have your Central Judicial Processing hearing. At this stage the charges are formally presented, you’re advised of your rights, and the prosecution will determine whether they are filing a motion for detention (i.e., to keep you in jail until trial). If the prosecution files for detention, you’ll be held in jail until your detention hearing. The hearing is supposed to be conducted within 3 days, but you can legally be held for up to 7 days waiting for a detention hearing.

What Is a Detention Hearing? 

A detention hearing is one of the most critical moments in your case. It’s where a judge decides if you will be:

– Released on conditions (such as weekly check-ins or electronic monitoring), or

– Detained without bail until your case is resolved.  That means you can be held until trial.

New Jersey’s Risk-Based Pretrial System

Unlike traditional cash bail systems, New Jersey uses a risk-based model to determine whether someone should be released or detained before trial. A central part of this system is the Public Safety Assessment (PSA), which is a tool that evaluates your risk level based on:

• Your criminal history
• Any past failures to appear in court
• The severity of your current charges

The PSA generates two separate scores, each ranging from 1 to 6, with 1 being the lowest risk. For example, a score might be presented as “PSA: 1/1.”

What Happens at a Detention Hearing?

At a detention hearing, the judge hears arguments from both the defense and the prosecution and may consider witness testimony or other evidence. Your PSA score is just one factor in the decision.

The judge will assess:

• Whether conditions can ensure your appearance in court
• Whether you pose a risk of obstructing justice
• Whether you present a danger to the community

If the judge determines that release conditions (like supervision or electronic monitoring) will adequately mitigate those risks, you will be released. However, if the court finds that no conditions can reasonably ensure compliance, you will be detained pending trial.

Representation at Detention Hearing

You absolutely need representation at a detention hearing. If you do not hire a private attorney, the public defender will be appointed to represent you at your detention hearing.

The detention hearing isn’t just about checking a few boxes, it’s about advocacy. Your freedom often times depends on your level of advocacy at the detention hearing.  Your attorney can:

1. Challenge the prosecution’s claims.
2. Present favorable evidence about your character, job, family ties, and lack of criminal history.
3. Dispute the accuracy of the PSA risk assessment.
4. Argue for conditions of release rather than pretrial detention.

Once a determination has been made as to whether you are being detained or released, it is extremely difficult to un-ring that bell. You have 7 days to appeal the initial decision, but those appeals are rarely granted.  Your best chance of being released is a your detention hearing. If you go into a detention hearing with someone who isn’t prepared you may sit in jail for months while your case unfolds.

Key Takeaways:

1. Complaint Warrants mean custody. If you’re arrested on a complaint warrant in New Jersey, you don’t go home. You’re taken into custody and held until a judge decides otherwise.
2. Detention hearings happen fast. After arrest, you’ll appear at Central Judicial Processing (CJP) within 24–48 hours, and if prosecutors seek detention, a hearing must be held within 3–7 days.
3. New Jersey doesn’t use cash bail. Judges use a risk-based system—not money—to decide release or detention, relying heavily on your Public Safety Assessment (PSA)
4. Your PSA score matters. This score (ranging from 1 to 6) evaluates your risk based on past criminal history, failures to appear, and the severity of your current charge.
5. Detention hearings can determine your freedom. Judges assess whether any release conditions (e.g., check-ins, monitoring) can reasonably ensure safety and court appearance. If not, you will held in the county jail until trial.
6. Legal representation is critical. An experienced and skilled attorney can challenge the PSA, present favorable evidence, and argue against detention. Once detained, it’s extremely hard to reverse the decision.
7. Your best shot at release is the first hearing. If you go in unprepared, you could sit in jail for months, even if you later prove your innocence.

Speak to an Experienced Defense Lawyer Today

If you or someone you know has been charged with a crime in the State of New Jersey or has a detention hearing, we can help. At Rosenberg, Perry & Associates, LLC, we are committed to protecting your rights and advocating on your behalf against any charges that you may be facing. Contact our offices for an appointment today by calling or texting us at (609) 216-7400 or looking us up online.