Lyonswood surveillance


Surveillance with private investigators
Obtain visual evidence for court or peace of mind.

Lyonswood person missing investigations


Missing Persons Investigations
Locate debtors, family members, witnesses and others.



Private investigators help with your legal battle. Learn the truth and make an informed decision.



Get results in family and relationship investigations.



Lyonswood Online Investigations
Gather digital evidence online or from your device.



Private investigations services

Need to get information or proof?

Let the experts help you!

When you’re looking for evidence or intelligence, there’s no substitute for an experienced investigator. Hiring a private eye can save you countless hours, significant costs and the disappointment of knowing you missed your chance to learn the truth.

Bottom line?

Investigators know where to look and how to gather the evidence you need. Always choose an experienced investigator who has successfully dealt with your type of matter before – you don’t want to be a test case!

Use the Private Investigators Preferred by Lawyers for 35 Years

Lyonswood Private Investigators serves individuals, law firms, councils, government agencies and businesses. We are the agency preferred by law firms because of our level of service and the quality of our evidence. We enjoy having the opportunity to solve problems and assist people to achieve their objectives.

The best part?

The expertise we offer to law firms and corporations is at your disposal too and at an affordable rate. No matter the size of the job or how unique your problem, we will endeavour to help. Simply contact our team today for a cost-free consultation.


Government-Licenced and Confidential

You are guaranteed a professional and discreet service when you call on Lyonswood Investigation’s 34 years of experience.


Australia-wide and International Capability

Our investigators all have broad-based expertise and are located across Australia and around the globe.



To ensure you receive the best possible outcome at a fair price we take the time to carefully plan each investigation based on your stated goals.

A Trusted Investigation Firm

When you need proof beyond doubt, you can rely on Lyonswood Investigations and Forensics Group, a professional and government-licensed private investigation company with over thirty years of experience. We will carefully and considerately manage your case because we understand that, in coming to us, you may have nowhere else to turn. We take pride in being the firm that people around Australia turn to when they need crucial evidence or information.

Your Objectives are Important

It is vital that an investigation is tailored to suit your particular circumstances. Ensure you choose an investigator who communicates with you effectively and understands your goals clearly. Through communication and planning, you can be guaranteed absolute discretion and the best possible result.

Supreme Court Case Study

When we were approached by a client being blackmailed online by an anonymous bully, we took the time to look into all available lines of inquiry to make sure we didn’t miss any clues. Through careful investigative work over time, we were able to expose the identity of the culprit in the Supreme Court without the help of the police. You can read the judgment here.

Quality of Evidence

Whether it is for the Supreme Court or just for your peace of mind, we will not be beaten on quality of service or on presentation of evidence. We have a commitment to assisting people and businesses get the outcome they seek at a fair price. The testimonials from previous clients listed on our site attest to our record and our standing in the private investigations industry.

Lyonswood Testimonials

  • avatar
    Morning Lachlan, just wanted to follow up to say thank you for your services. The outcome you provided me was exceptional and this has been the smartest investment I have ever made. If you have a spare moment to chat today I would like to fill you in on where the case landed and seek your advice on next steps for me to finalise. Looking forward to your reply.
    From: Liam ********[mailto: ***.com] Sent: Monday, 2 May 2016 8:52 AM To: Lachlan Jarvis Subject: RE: Lyonswood investigations | response and brief (highly confidential)
  • avatar
    Thanks Lachlan. The Husband admitted his fraud in court yesterday. A job well done.
    David *****
    From: David **** [mailto:****@******] Sent: Thursday, 30 July 2015 7:53 AM To: Lachlan Jarvis Subject: RE: Affidavit
  • avatar

    Hi Lachlan,

    Thank you so much for the work you did in relation to finding ****.

    I have managed to contact him through the **** club and we are now emailing each other.

    I have paid your account today, we have been away for the past week.

    Again thank you so much.


    From: Pam [mailto:*****] Sent: Monday, 2 September 2013 11:54 AM To: Lachlan Jarvis Subject: Re: FW: Message site Investigators
  • avatar
    Hi Warren Thanks for the information you’ve passed along, your report regarding Nancy XXXXXXXX and invoice (which we will attend to promptly). I’ve passed your business information along to our CEO. I understand your feelings regarding working on a panel for the scheme agents and my first impression is that because we’re not one of them, you could be a great fit with us. Particularly following your very first job with us and the results gained! We’ll keep in touch. Thanks again and kind regards,
    From: Nicole XXXXXXXX [] Sent: Friday, 19 October 2012 10:18 AM To: Warren Mallard Subject: RE: Nancy XXXXXXX
  • avatar
    Hi Lachlan I’ve now had a good look at the attachment & you did a very thorough search & used all the information I gave you & I thank you for that. You did a very good job & all the information has helped in showing that he doesn’t go by the name ****** & helpful in other ways. Thank you for your very thorough search. Have a great Friday & Weekend. Kind Regards
    From: mark@******* Sent: Thursday, 26 March 2015 9:58 PM To: Lachlan Jarvis Subject: RE: Investigation
  • avatar
    Mr. Jarvis Thanks a million!! Yes, It’s him. You did it again. 10/10 is the score of your professional service. Kind regards
    From: Lily ***** [mailto:***********] Sent: Wednesday, 30 September 2015 8:15 AM To: Lachlan Jarvis Subject: Investigation Enquiry
  • avatar
    Dear Warren, Your further report and invoice now received. Our client will decline the claim so for the time being we need nothing further from you. I am drafting the dispute notice on the weekend and will ensure your fees are paid promptly. Thank you very much for the great work. Best regards
    Kathy | Partner | Hickson
    From: Kathy Xxxxxxxxx [mailto:Kathy.xxxxxxxxxx.] Sent: Friday, 19 October 2012 3:30 PM To: Warren Mallard Subject: RE:Â Xxxxxxxxxxxxx
  • avatar
    Hi Lachlan, Thank you for your work last year, the photos your investigator took were used in evidence and made for creating a very clear picture for the magistrate. This, along with other evidence saw the case being completely dismissed. Kind Regards
    Michael *****
    From: Michael *** [mailto: ****] Sent: Sunday, 20 July 2014 9:24 AM To: Lachlan Jarvis Subject: Re: FW: FW: Message site Investigators
  • avatar
    Hello, Thank you very much for the report it is exactly what I need. Am I able to send the report to my lawyer to see if we can use it for our next court hearing? Thank you
    From: D******[mailto:d*****com] Sent: Wednesday, 29 January 2014 6:58 PM To: Lyonswood Subject: RE: REPORT & INVOICE
  • avatar
    Well, I’m very impressed with you & your service. I am retired pretty much now. I don’t ‘need’ a job but your business appeals to me. If you need help, I do have a degree  B.Sc Hons (Maths/Chemistry) + Dip Ed degree, taught Maths for 10 yrs F/T, started my own business, 25 yrs go, franchised it & sold it off (as a quick summary….) I’m very good on the phone, as my whole business was ‘sales’. And I hate people(or animals) being hurt or ripped off.
    From: Courtney XXXXXXXXXX [] Sent: Thursday, 25 October 2012 5:54 PM To: Warren Mallard Subject: From C:
  • avatar
    Good Morning Mr MALLARD, I have forwarded the document to our Crime Coordinator to make determination in regards to whether handwriting analysis is to be done or not. It was pleasure to find out that there is someone who exactly understand what police would need with a high level of experise at the same time. I will contact you as soon as I hear from our Crime Coordinator. Thank you.
    From: [mailto:] Sent: Tuesday, 9 October 2012 10:33 AM To: Warren Mallard Subject: Re: Forensic Document Analysis
  • avatar
    Hi Lachlan, thank you very much for finding out the information of his address. Unfortunately **** has left **** and when she gets over the hurt of his rejection she intends to go back and front him, so the information you found will be very helpful and we will let you know how it goes. She may not get back till next year. Thank you once again Lachlan, you’ve been a big help. Regards.
    From: K ****[mailto:*****] Sent: Wednesday, 23 April 2014 3:02 PM To: Lachlan Jarvis Subject: Re: Investigation: Locate
  • avatar
    To everyone who was involved in my case, I would like to express my deepest thank you and appreciation for you quick, efficient and discreet work. Hopefully, I won’t need to, but if I did, I would use your company again without hesitation and I will recommend you if anyone asks. Once again, thank you Kind regards
    From: N******** [mailto:********] Sent: Wednesday, 11 May 2016 9:32 AM To: Adam Virzi Subject: RE: ********
  • avatar
    Thank you Lachlan. It was a pretty tough night didn’t sleep a wink. I must mention to you that Robert was fantastic, he can’t be faulted, he was very thorough in keeping me up to date, and very compassionate and understanding of what was happening during this very difficult time for me. He comes highly recommended. Regards.
    From: Tanya [mailto:t****@******] Sent: Tuesday, 28 July 2015 4:41 PM To: Lachlan Jarvis Subject: Investigation Enquiry
  • avatar
    Dear Warren, I want to thank you for your professional help. Three of the four charges against me were dismissed yesterday and the Complainants were called liars by the Magistrate. Although your analysis of the video was useful to me personally I was unable to get it in front of the Magistrate. In the end it wasn’t necessary. The Magistrate was scathing of the complaint and the police investigation (or lack off). Obviously the Magistrate’s comments will give you comfort in stepping up to testify to audio edits. Let me know what you think – and once again thank you for your work,
    From: Chris XXXXXXX [] Sent: Saturday, 2 February 2013 10:23 AM To: Warren Mallard Subject: Chris Court Case
  • avatar
    Lachlan, Yes, I’d like to visit Australia one day and experience the climate, desert, outback, and the east and south coast cities. I understand that ***** has a character all of it’s own. Here’s a quote: “I engaged Lyonswood to track down several long-lost Australian relatives. It was a complex brief and I didn’t have a lot of information to go on at first. I found Lyonswood to be very discreet and sensitive, tactful and patient, thorough and professional in their enquiries, always keeping me up to date with progress, and thinking outside the box to try different angles whenever we got stuck and coming up with results each time. I initially chose the company because of it’s reputation for integrity and for championing high standards with the Private Investigators industry, and I’m very glad that I did. My life has been transformed by their ability to reconnect me with the other half of my birth family. The day when they tracked down an internet photo (that I would never have otherwise located) that showed my half-sister looked just like myself, was an emotional one for me. Here’s to the Lyonswood guys and gals. Thanks so much.”
    From: ***** **** [mailto:********.uk] Sent: Thursday, 14 November 2013 9:03 AM To: Lachlan Jarvis Subject: Quote
  • avatar
    Dear Warren, I just wanted to thank you from the bottom of my heart for all your help, support and understanding. Your kind words were most appreciated. After all this my husband STILL tells me they are only friends, even showed me the plane tickets, that clearly showed that from Singapore both of them went to different places. But…. it is just too late for that, I am tired of being sad and depressed all the time, and need a new fresh start 🙂 Gutted now, will get better soon:) Thank you for everything. Wishing you and your family all the very best. Kindest Regards,
    From: Tasha L [] Sent: Friday, 1 February 2013 1:02 PM To: Warren Mallard Subject: Re: from Nat
  • avatar
    Hi Lachlan, When I first rang your firm I felt very nervous. Your office lady made me feel at ease – helpful, polite, very well mannered. I spoke to you about my problem in detail, you explained what can done and what was needed from me. E -mailed it off, within 3 days an E-mail arrived, containing everything needed and in such detail. FANTASTIC. Again in Jan this year I contacted you again on something urgent with time frame 48 hrs related to my previous matter. Before I knew it I received 5 pages of information that far exceeded anything I thought possible. Plus in that time frame in such detail and so accurate. I was totally amazed. It allowed me to go and see the person in ****** and discuss problems over lunch. Thanks to all your efforts and your staff. So please accept my deepest thanks for all your efforts on my behalf in these matter . Yours sincerely
    Peter *****
    From: Peter ******* [mailto:p*******] Sent: Wednesday, 11 March 2015 2:36 PM To: Lachlan Jarvis Subject: RE: *******

How We Can Help You

While you may initially be anxious about contacting an investigator or private detective because you have never taken that step before, you can be assured that no problem is too small or too unique for us to discuss. All our team members have a broad range of skills and we assist individuals, parents, corporations, councils, law firms, insurance companies and others. It costs nothing to contact us to discuss your matter and have us respond with total confidentiality.

Our Clients

We have worked hard for our excellent reputation and we encourage you to view a list of companies, law firms and councils who have relied on our services and are proud to be associated with the Lyonswood brand. Though we list large multinationals and top law firms as some of our clients, a large part of the work we do is for individuals, helping them through the day-to-day problems that might arise in their personal, social or business lives.

Meet Our Team

All of Lyonswood’s private investigators are government-licensed. We have resources in every state and territory in Australia and colleagues in almost every country around the globe.

Lyonswood was founded by Warren Mallard, a former president of the Association of Commercial and Private Inquiry Agents (ACPIA), National Association of Investigators (NAI) and The Institute of Mercantile Agents (IMA) who also served as the Area Governor for The World Association of Detectives (WAD) and World Investigators Network (WIN).

Lachlan Jarvis, Lyonswood’s director, worked under the tutelage of Warren for several years until taking over the reins in 2013. Lachlan continues the work done by Warren and has helped manage cases in which Lyonswood’s evidence has been used in the Supreme Court. Please peruse the many media appearances made by our directors, past and present.


What is a Private Investigator?

A private investigator is an expert in gathering evidence and information. The information can be gathered for court purposes or just because you need answers to your questions. Investigators work for individuals, law firms, businesses, government agencies, insurers and others.

Read more

What does a Private Investigator do?

You have probably heard about services such as surveillance, missing person searches and background checks. Did you know however that some broad-based investigation firms are also fully equipped to provide digital forensic services, handwriting analysis, bug sweeping and more? Many people are surprised by the problem-solving capabilities of today’s investigators. Even if you believe your inquiry is problem is small or unusual, it’s very likely that here at Lyonswood Investigations we have solved similar cases before.

Please see here a list of the full range of services Lyonswood provides or contact us to discuss your particular needs.

How much does it cost?

It costs nothing to contact us and discuss your case. During the initial consultation we can outline your options and provide an obligation-free estimate of costs. Each matter is quoted for individually as we like to offer tailored solutions to each person or business who needs our help.

The easiest way for you to get an accurate estimate is to contact an investigator today and discuss your requirements.

How do I choose an Investigator?

Before engaging an investigator, we encourage you to do a little investigating yourself! Choosing the right investigator can make a big difference to the outcome of your case and the quality of evidence you gather. Spend a few minutes looking over the websites of investigation firms and also run their names on Google to see what other information comes up.

Having successfully completed thousands of cases over our 35-year history, we attribute our longevity to a strong emphasis on customer service. When you need the best, use the firm that is preferred by lawyers and businesses around Australia. Learn more about Lyonswood.

What do I get?

If you engage Lyonswood, you get the benefit of our experience and knowledge, a guarantee of confidentiality and, where requested, a written report regarding the outcome of your investigation. You also get the peace of mind that comes from relying on Australia’s most reputable and well-known investigation company.

Read testimonials from our satisfied clients here.