Our qualified private investigators are often engaged to investigate fraud, theft and sensitive personal matters.
Over 10,000 cases solved since 1987! Dion Neill is Wellington’s most trusted private investigator. We have a team of qualified private investigators in Auckland, Wellington, Christchurch and throughout every region of New Zealand.
The Neill Group (TNG) are the preferred investigation agency for a growing number of private, commercial and government clients. Our government licensed private investigators have served their region as police detectives and senior police officers.
Our highly-skilled team of private investigators use advanced investigation techniques to gather evidence. Our private investigators are discreet, everything we do is supported by an unparalleled level of expertise.
We have almost four decades of experience as government licensed private investigators. Regardless of the situation or challenge you are facing, we can assist you in Auckland, Wellington, Christchurch and throughout New Zealand.
The Neill Group (TNG) difference:
- Nationwide coverage from Kaitaia to Bluff.
- Proven results with over 10,000 cases solved.
- Over 35 years of private investigation experience.
- Unlimited access to reliable worldwide resources.
- Our team includes qualified former police detectives.
- Experienced in giving district court and high court evidence.
- Fraud examiners and forensic experts are readily available.
What do private investigators get hired for?
Finding missing people in New Zealand
Gone without a trace? Finding missing people.
MoreFM interview with Dion Neill – Click here to listen
Fraud, Theft & Dishonesty Investigations
Fraud, theft and other forms of dishonesty inside a business occurs through a lack of internal processes which opens a window of opportunity for dishonesty. The evidence we provide can be used for the basis of a criminal prosecution or legal proceedings.
Sensitive Personal Investigations
Do you suspect your partner is being unfaithful? Is your former spouse or partner not adhering to child custody orders? Are you being stalked? We carry out inquiries regarding child custody issues and sensitive personal matters. Are you concerned about your child or family member? We can help.
IP, Copyright & Trade Mark Investigations
We investigate the infringement of IP, copyright and trade mark patents. We can assist help you to safeguard the integrity of your brand or company’s reputation. Dion Neill has personally carried out complex investigations for global companies, including: Nike, Sony, Adidas, Armani, and Microsoft.
Insurance Claim Investigations
We act for insurance companies to ensure claims are genuine. Claims can amount to substantial amounts of money, which often requires further inquiries before any form of compensation is made to the insured. We can assist you to confirm the validity of insurance claims and to investigate a claimant who is suspected of misrepresenting the facts.
Drugs, Alcohol & Substance Abuse Investigations
Do you suspect your partner, family member or employee of taking drugs or illegal substances? Drugs, alcohol and substance abuse is often the foundation for criminal and anti-social behaviour. We can investigate any concern of drug, alcohol and substance abuse. We also investigate cases of suspected physical and psychological abuse.
Business & Commercial Investigations
We offer business owners a comprehensive investigation service to safeguard their business interests. Our modern technology and formidable experience enable us to take on every type of investigation assignment. We will thoroughly investigate, obtain factual information and take evidential statements.
Nationwide Tracing Services
We use proven investigative techniques, including data mining, to gather information on the whereabouts of a missing person. We have a solid track record of successfully locating missing people including debtors, defendants, birth parents and family members anywhere in New Zealand.
Cyber (Internet) Investigations
We investigate unauthorised cyber access and hacking incidents inside a business, organisation and workplace. Our investigation can include unauthorised use of computers and other technology without your authority. We also investigate online scams, harassment and cyberbullying.
Hidden Asset & Stolen Property Tracing
Are you attempting to locate a missing asset or stolen property? We have a track record of successfully locating assets and property. We can trace and recover assets throughout New Zealand using our extensive network of highly-skilled private investigators.
Criminal Investigation Support
We support criminal prosecution teams and defence counsel (barristers and solicitors) throughout New Zealand who are actively engaged in criminal cases. Our services in this area includes interviewing, taking statements, locating witnesses and obtaining evidence.
Surveillance
Surveillance is often used as an effective investigation tool to prove theft, fraud and relationship dishonesty (suspected infidelity). When you need to know the truth, you can rely on our professionally trained private investigators and surveillance specialists to give you the answers.
Background Checks & Employee Vetting Services
Who are you really hiring? With the many investigation tools at our disposal, we provide employers with evidence-based recommendations about prospective employees. Background check on prospective employees or employees in positions of trust can help to mitigate risk. If you decide not to carry out these essential checks, it can have a long term negative effect on your clients, business and reputation.

