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Elizabeth Detectives

Browse these detectives with great ratings from Thumbtack customers in Elizabeth.

NJ Private Investigators
from 6 reviews
  • 13 years in business
  • 8 hires on Thumbtack
Michael A.
Verified review

One of the Detectives, Rosa, did a check on the background of a company I was thinking of investing in. Thank goodness I did! It saved me money and potentially A LOT of aggravation! I'm forever grateful!

  • 14 hires on Thumbtack
Robert M.
Verified review

Our experience with J&K was excellent! The investigation was done very timely and acurately. With speciality in finding individuals they were a perfect match to our needs. The service was very professional and we felt very comfortable in disclosing our personal information and that of the individual we were looking for. I would rate the service as 5 stars and the fee was more than fair and very competitive.

CPI Investigations
from 3 reviews
  • 3 hires on Thumbtack
Jeff P.
Verified review

This is a top-notch NYC investigation firm. Their surveillance team; including the professionally written reports, and close-up photography, is head and shoulders above the others. We have had a close working relationship with CPI for many years, and they always come through for our firm, and our clients. CPI also offers missing persons location services, sweeps for bugs and wire-taps, and even lie detection services (polygraph) for either business or personal investigation matters. If you or your business require investigative or protection services, call Mr. Banks or Mr. Pinto, for a prompt, efficient resolution.

  • 6 years in business
Susan W.
Verified review

Mr. Bonnie was very helpful and provided the information I needed in a timely manner. He was available by phone when needed and was polite and professional.

  • 1 hire on Thumbtack

Oct. 2000 a Superior Court Judge said that our video surveillance was the best he ever saw. An Attorney for a major insurance co. said that we provided him with the best videos investigations that he ever saw in his 30 plus years with that company.


I was a former detective and chief polygraph examiner for the Queens district attorney's office. I am the president of CPI Investigations, a private detective firm with offices in New York & New Jersey. We specialize in lie detection, surveillance, child custody, missing persons, de-bugging background checks, bodyguards, and event security. We handle difficult and unusual cases. At CPI Investigations, we will exceed your expectations!


We are New Jersey based expert private investigators who service all NJ areas. We perform cheating-spouse investigations. Speak with a surveillance expert. We have 99.5% success rate at providing successful results without getting caught! We are experts at locating people, fleeing criminals and debtors. Call us today for your free consultation.

  • 6 years in business
  • 1 hire on Thumbtack

Private investigations are done by retired NYPD detectives. We are discreet and very professional, and we will cater to your investigative needs. We specialize in insurance fraud, matrimonial issues, family court, due diligence, background checks and many other investigations.


I am a licensed private detective conducting all types of civil and criminal investigations. I specialize in surveillance, witness location and obtaining statements.


Our services include surveillance, locating, photo, video and custody. We have been in the business for over 25 years. We have experience in all types of investigations. Call and you speak to the owner.


We have all types of investigations and security services provided by retired NYPD detectives. Please contact us for a free phone consultation.


The Document Bureau is a licensed private detective and investigations agency providing the following: * Preemployment Background Screening Services * Employee Screening Services * Drug Screening Services * Driver's License Record Review * Employment, Education and Professional License Verification * Military Records Review * Lost Heir Search * Witness or Party Location * Asset Search * Criminal Background Search * Sex Offender Registry Search * Civil Litigation and Bankruptcy Record Search * General Investigations * Workers' Compensation Investigations * Insurance Investigations * Matrimonial Investigations * Security Consultation


• We try harder than anyone to solve your business espionage concerns. • At Murray Associates you are assisted by real people, with verifiable credentials. • Your eavesdropping detection inspections (TSCM) are completed by us, not unknown subcontractors. • Your confidentiality is assured. • You will receive a written estimate with competitive pricing; backed by proven value. • We are licensed and fully insured. • Read our client's comments. Meaningful references arranged. • We maintain a full-time corporate counterespionage TSCM staff – all with 13 or more years tenure. • Our professional certifications include: CPP, CISM, CFE, BCFE and MPSC. • Government-level TSCM instrumentation. (Some of it exclusive to us.) • Our instrumentation is not illegally “borrowed from the day job” or rented. • Our TSCM instrumentation is purchased new. (No eBay or surplus gear.) • We developed a "detection without destruction" methodology. • Not affiliated with any products or manufacturers. We do not try to sell you the hardware or software we might recommend, and we have no financial connection with suppliers of equipment, software or human resources. All of our information security recommendations have your best interest in mind. • Experienced creating and managing multi-national electronic countermeasures programs. • In-house development of unique TSCM instrumentation and methods. • One company, one speciality – 30+ years experience. • We are published – counter-surveillance chapters for textbooks and "Is my cell phone bugged? Everything you need to know to keep your mobile conversations private." • University teaching experience; TSCM seminars. • Verification of 'finds' via polygraph testing upon request. • Qualified to consult with you on general security matters. • Court testimony and deposition experience. • Created TSCM innovations which are now industry standards. • Over 375 Fortune 1000 companies have used our services. • Over 800 other companies have used our services. • Over 3960 eavesdropping detection audits have been successfully completed. • A majority of our client relationships span 5-30 years. • Top news organizations seek our technical advice and security opinions. • 97% U.S.A. made instrumentation and technology. • Our 100% satisfaction guarantee.

Q & A

Answers to commonly asked questions from the experts on Thumbtack.

What does a private investigator do?

First and foremost, good private investigators follow laws. Unlike on TV, they don’t break in windows or hack into hospital computer systems to get you intel. When you hire a private investigator, you’re hiring a professional to gather facts and find information for you. Although they can’t obtain certain information (such as health records), they do have access to information that most civilians do not. Often private investigators are hired to perform surveillance or background checks or investigate cases such as adultery, child custody, missing persons, hidden assets, or debugging, and theft or other crimes.

Private investigators can be hired to interview people and provide that information to the client, perform photo or video surveillance, monitor activity at a location where you suspect criminal activities or questionable behavior, track a person’s movements, find missing people, do deep-dive background checks, and more. Private investigation can be helpful if you’re trying to get a court order but need evidence. Private investigators can also help find birth parents. Nationally, the average price range for private investigation is $70-$210 per hour.

What does a private investigator cost?

Private investigation isn’t just for blockbuster action movies. Hiring a private investigator can help in all kinds of situations ranging from finding a birth parent to improving personal security. Nationally, the average price range for private investigation is $70-$210, although pricing often hovers between $40 and $100 depending on the complexity of the services you need. Where you live in the country will affect your costs for private investigation; larger cities have higher business overhead and a higher cost of living, which in turn means higher service rates. The complexity of your case can also affect cost. A basic background check may have a flat rate, while hiring a private investigator to help with your child custody case may require more legwork and research, and therefore cost more. Some private investigators work on retainer. A retainer is essentially a nonrefundable deposit you pay to the professional — meaning you have retained their services — who then works against that amount. Here are some examples of average private investigation costs:

  • Hourly rate: $60-$70; costs can vary based on current fuel prices.
  • Flat rate: $100 for comprehensive background investigation services.
  • Retainer: $1,500 minimum retainer required by some pros before starting work.
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