Infidelity Specialists
Discover The Truth
Uncover the facts you seek by relying on our team’s extensive investigative knowledge and experience.
Call Us Today:
1300 792 283
As seen on
Infidelity Specialists
Discover The Truth
Uncover the facts you seek by relying on our team’s extensive investigative knowledge and experience.
Call Us Today:
1300 792 283
As Australia’s Cheating Partner specialists, we help thousands of people like you uncover what’s really going on in their relationships. With specialised agents Australia wide and expert tools to help you get to the bottom of it all. With over 30 years combined experience, allow us to assist you along this challenging path and rest assured if foul play is at hand, we will uncover it.
Other Services We Can Also Assist You With
Discover a world of unparalleled expertise and discretion with our comprehensive private investigation agency services, we specialize in helping people to solve problems, uncovering truths, and providing you with the answers you seek.
Surveillance
Spy Products
Phone Number Search
Background Checks
Child Custody
Insurance Investigation
Factual Investigations
Business Investigations
Person Tracing
Fraud and Theft
Alcohol & Gambling Addiction
Counter Surveillance
WHY CHOOSE
Magnum Investigations
Timely Results
We ensures swift and accurate outcomes, providing you with the information you need when you need it most.
Highly Cost-Effective
Experience high-quality investigation services that won't break the bank with our Highly Cost-Effective solutions.
Fully Licensed Investigators
Trust in our Fully Licensed Investigators for professional, reliable, and ethical services you can count on.
Utmost Secrecy
Rest assured, your confidentiality is our priority with our Utmost Secrecy commitment, handling discreet sensitive matters.
Urgent Surveillance
We the only company and uniquely skilled in urgent surveillance, we provide rapid, expert response for time-sensitive, critical demands.
Agents out within an hour
Prompt and efficient, our agents are dispatched within an hour or two, ensuring rapid response to your invetigation needs.
Step into the world of intrigue and secrecy with our cutting-edge spy products, designed to empower you with the tools and gadgets needed for covert missions and clandestine operations.
Complete Covert Solutions:
Explore Our Spy Product Bundles!
Ready to take your surveillance game to the next level? Explore our Spy Product Bundles today and equip yourself with the ultimate tools of discretion and investigation. Don’t miss out on these comprehensive solutions—act now and gain the advantage in your pursuit of truth and security.”
What Our Clients Say
★★★★★
“Thank you to the team from Magnum Investigations for their professionalism, compassion and confidentiality during a difficult time in my life. You uncovered the evidence to help me move forward with my life.”
Miss Wilde
Google review, 2024
★★★★★
“Very discreet and fast! Got me the information I wanted within 24 hours. Highly recommended!”
Daniel G
Google review, 2024
★★★★★
“Handled a sensitive situation with complete confidentiality and professionalism.”
Patience C
Google review, 2026
★★★★★
“Prompt service, professional staff. Highly recommend Magnum”
Kristen H
Google review, 2025
Private Investigator Melbourne - Frequently Asked Questions
How much does a private investigator cost in Melbourne?
Surveillance is $120 + GST per hour. Each job starts with a 4-hour block at $1,100 + GST, which already includes travel time, km, admin and average expenses, so there are no surprise extras. Extra hours are $120 + GST each. A deposit secures the booking and the balance is paid after the job.
What happens on a surveillance job?
An investigator watches the person on the day and times you pick. They film and photograph where the person goes and who they meet, and note the times. You get the photos, video and a written report.
Can you find someone in Melbourne?
Yes. Person tracing starts at $500 + GST when you have a current phone number. It costs more with only an old address or a name.
Can you tell me who owns a phone number?
Yes. A phone number search is $500 + GST and usually takes 1 to 2 business days.
Can you help with a child custody matter?
Yes. We can watch and record what happens during care time, so you have dated evidence to give your lawyer.
Will the person know they’re being watched?
Our investigators are trained to stay unseen. Your enquiry and the results stay confidential.