Private Investigators Perth
Welcome to Cottman Investigation Services (CIS), where integrity, discretion, and professionalism are our guiding principles. When you engage a private investigator, trust and confidentiality are essential, and at CIS, we handle every case with the highest level of care. With decades of combined expertise and cutting-edge investigative methods, we are committed to providing you with the answers you need.
Robyn Cottman, our principal private investigator, brings nearly a decade of experience from her time with the WA Police, where she worked across specialized units. Robyn, as a private investigator, has handled several high-profile investigations, including the tragic murder of Stacey Thorne, the suspicious disappearances of six Indigenous men, and she also played a key role assisting Channel 7's *Spotlight* team on the Amy Wensley case.
At CIS, we our private investigation services include surveillance, boasting Australia’s top operatives—expert, highly trained professionals dedicated to uncovering the truth. Whether you're dealing with a cheating spouse, a suspect workers' compensation claim, or require legal evidence, our team is equipped to get you results.
As private investigators. we’ve built a solid track record in a variety of cases, from background checks, fraud investigations to missing persons cases and surveillance. Using the latest technology and meticulous attention to detail, we provide reliable, actionable insights tailored to your specific situation—be it personal or corporate.
At CIS, our private investigators value transparency and believe in cultivating strong relationships with our clients. With open communication and an unwavering commitment to truth, we stand beside you, helping navigate even the most complex challenges. Trust Cottman Investigation Services to be your partner in uncovering the answers you deserve.
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Surveillance
At CIS, we specialise in surveillance services. Our team has years of experience in covert surveillance for a wide range of cases. Whether you suspect infidelity, need to track someone, or gather evidence for a criminal/civil case, we have the skills and expertise to get the job done.
Infidelity Investigations
If you suspect your partner is cheating, our team can help. We use a variety of techniques to discreetly gather evidence of infidelity. Our team is experienced in handling sensitive cases and understands the importance of discretion. Contact us today to discuss your case.
Criminal/Civil Law
Our team has experience in providing evidence for a wide range of criminal/civil cases. We understand the importance of gathering accurate and reliable evidence to support your case. Contact us today to discuss your case and how we can help.
Corporate Investigations
At Cottman Investigation Services, we offer a range of corporate investigation services. Whether you need to investigate internal theft, fraud, or other corporate misconduct, our team has the skills and expertise to get the job done.
Background Checks
We offer comprehensive background check services for individuals and businesses. Our team can provide you with the information you need to make informed decisions. Contact us today to discuss your needs.
Bug Sweep
Our highly trained private investigators use the latest in technical sweep technology. We understand the importance of maintaining confidentiality in personal and corporate matters. We will ensure your privacy is protected. Whether you need a residential or commercial sweep, we have the expertise to give you the peace of mind you deserve.
CIS
The Investigator You Call When it Matters Most
When truth matters, experience isn’t optional—it’s essential. At Cottman Investigation Services, I bring over 30 years of investigative and psychological expertise to every case. As a former WA Police officer and qualified psychologist, I’ve worked at the intersection of criminal behavior, trauma, and justice. I don’t just collect evidence—I interpret it, anticipate patterns, and uncover what others miss. My clients trust me because I deliver clarity in the most complex, emotionally charged situations.
I’m not the cheapest. I’m not the loudest. I’m the one who gets results. What sets me apart is precision, discretion, and an intuitive understanding of human behavior. I specialize in cases that require more than surveillance—they demand insight. Whether it’s a missing person, a family dispute, or a sensitive legal matter, I approach each investigation with strategic focus and emotional intelligence. I don’t waste time. I don’t cut corners. I get it right.
You’re not just hiring a private investigator—you’re hiring someone who knows what’s at stake. I work directly with every client, ensuring confidentiality, professionalism, and a tailored approach that reflects the seriousness of your situation. “She didn’t just find the truth—she gave us peace of mind when no one else could.” If you’re ready to move beyond doubt and into action, I’m ready to lead the way—with integrity, clarity, and results that speak for themselves.
Our News
Media About Our Cases
Missing Persons Cases
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Do Some Lives Matter More
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Vanishing Males Case
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Stacey Thorne Case
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Vanishing Males Case
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I hired Cottman Investigation Services to do some surveillance. They were professional, prompt, and got the job done well. I highly recommend their services.
Cottman Investigation Services provided me with the evidence I needed to support my case in court. Their team was professional and easy to work with. I would definitely use their services again in the future.