Cottman Investigation Services
Discreet, professional, and results-driven. 30+ years experience in law enforcement and private investigation.
Why Clients Choose CIS
When the situation is complex, sensitive, or high-stakes, experience matters. We’ve worked across law enforcement, psychology, and private investigation for decades. Our approach is strategic, discreet, and grounded in evidence—not assumptions.
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Former WA Police Officers
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Qualified in Behavioral Analysis
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30+ Years Experience
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Direct Access—No Intermediaries
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Clear, Legally Sound Reporting
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WA-Based | Fully Licensed | Confidential
Services Offered
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Family Disputes & Custody Investigations
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Missing Persons & Welfare Checks
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Infidelity & Relationship Surveillance
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Fraud, Theft & Workplace Misconduct
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Criminal Case Support & Evidence Review
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Behavioral Profiling & Strategic Insight
"Robyn’s professionalism, insight, and discretion were unmatched. She delivered results that changed everything." — Verified Client, WA
Call for a confidential consultation: 0481 952 167
Qualified
Discreet
Experienced
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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
Cottman Investigation Services is led by Robyn Cottman—one of Western Australia’s most experienced and principled private investigators.
With over 30 years in law enforcement, psychology, and private investigation, Robyn brings a rare combination of strategic insight, behavioral expertise, and investigative precision to every case. Her background includes service in the WA Police Force and extensive work in complex, high-stakes investigations across legal, corporate, and personal domains.
Robyn’s approach is professional, discrete, and results driven. She investigates what others overlook, delivering clear, evidence-based outcomes that hold up—legally, ethically, and professionally.
Clients choose Cottman Investigation Services when the situation demands more than 'just a PI'. Whether it’s a criminal / civil investigation, an infidelity matter, workplace misconduct, or a case requiring covert surveillance, Robyn handles each matter personally, with absolute confidentiality, expertise and precision.
CIS Music Video Projects
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.