Private Investigators Discuss Their Most Scandalous Cases
The idea of a private detective conjures up images of hardboiled gumshoes wearing trench coats and cracking cases. While the film noire imagery might not reflect reality, the fact remains that private detectives were and still are investigating cases.
Naturally, this is a job that's likely to lead to more than a few stories - and here are some of the best we've found.
Casing the creep
I worked as a private investigator for about five years, and I had a few interesting cases. One of them involved a coach who was allegedly having a relationship with one of the female players. A benched player hired me to gather documentation because the coach and starter were being very careful about arranging their meetings.
It took some time, but I was eventually able to collect the evidence needed. About a week later, the coach resigned, with reports saying he was going back to work in his family business. Then another week passed, and the full story came out in the media along with the evidence I had gathered, though I was not named in the report as I had requested.
Forget about it
After I left my ex-husband, who had been unfaithful throughout our marriage, I moved about 1,000 miles away to start over. About a month later, I found a large, heavy envelope in my mailbox. Inside were multiple photos of me going about my daily life, all clearly taken from a distance without my knowledge.
I immediately contacted my attorney, and it turned out my ex had been trying to gather evidence to claim I had abandoned the marriage by looking for signs I was with someone else. It was a very unsettling experience, and it took time before I felt comfortable and safe again in my new home.
Too much drama
My family has hired private investigators on three separate occasions, and each time they uncovered serious infidelity issues. In two of those cases, the investigations even revealed hidden families. One example goes back to my great-grandfather, who was found to have had three wives at the same time, which only came to light after his death.
My grandfather later hired a P.I. to sort out the resulting inheritance complications, and surprisingly stayed on good terms with the newly discovered half-siblings. In another case, my uncle was followed during frequent trips to Mexico, where it was discovered he also had an additional family, which created more inheritance complications after his passing. Later, my cousin's husband, a professional baseball player, was also investigated and confirmed to be cheating, leading to a divorce, and he is still not spoken about within the family.
Hunter to hunted
I'm a private investigator, and one time a subject realized I was following him and immediately started chasing me in his vehicle. Instead of backing off, I kept filming the entire situation, including his speed, driving behavior, and aggressive maneuvers, since it ended up becoming useful evidence. He even had his young child in the car at the time, and it was part of a custody-related case.
I eventually lost him by going through a busy intersection and running a red light to break the pursuit. From what I observed during the encounter and the way he behaved while endangering other drivers and having his child in the car, it strongly reinforced the concerns in the case about his judgment and parenting.
Staying in the shadows
I have a family member who works as a private investigator, and a few years ago he was hired for what started as a fairly routine infidelity case. The assignment was to gather evidence on a suspected cheating spouse, but it eventually escalated into something far more serious involving an alleged plot where a hitman was hired against the client.
Because my family name is connected to his, law enforcement suggested I stay off social media for a while until things were resolved, which I did. At the time I didn't realize how significant the case had become, but over a year later I was watching a TV special about it and recognized parts of the story, including locations I had been to while occasionally accompanying my relative during fieldwork. The case ultimately relied on evidence he collected, though he chose not to be identified in the broadcast.
Stop the stalker
My significant other had a stalker who would send him flowers, and we would sometimes come out to our secured front garden and find notes or small gifts left behind. On one occasion, a glassine envelope with a strange white powder was left at our front door, which was extremely unsettling, even though nothing ultimately came of it.
After that, the situation escalated with increasingly hostile letters being sent to our neighbors, making false claims about me and trying to damage my reputation. It went on for a couple of months, so we hired a private investigator recommended by our attorney, and he identified the person quickly. It turned out to be a married woman with an infatuation with my husband. We didn't press charges, but our attorney ensured she understood the seriousness of her actions, and the harassment stopped immediately afterward.
Keeping it in the family
I'm not a private investigator, but I know someone who worked as a junior detective, and he told me about one case that really stood out. A woman hired them after discovering her husband had been cheating on her with someone he believed was her "brother."
The strange part was that the wife insisted she didn’t have a brother at all and had grown up as an only child, so the team initially assumed it must be a long-lost relative or some misunderstanding. But when they asked the husband to describe the man, his description matched the wife’s father. According to the wife, her father hadn’t been present in her life in any meaningful way and hadn’t even attended her wedding, so the husband had never met him—meaning he had unknowingly been having an affair with his wife’s father.
Haunting details
I once had a private investigator hired against me, and the level of detail they uncovered honestly surprised me. They were able to find things like tattoos that aren't normally visible, an old address I lived at in another country, and even medical information tied to an accident from years earlier—details that don’t seem like they should be easily accessible.
The situation started because I’m a bartender, and during a home purchase I had a regular loan me money with a formal agreement. He had drafted two copies of the contract and discarded one, which his wife later found and became suspicious about. She hired a P.I., and during their investigation they uncovered all kinds of personal background information about me. The next day, my regular told me his wife had confronted him with details he didn’t even know about me himself, which made the whole thing feel even more unsettling.
The source of the cash
I was hired to investigate a woman whose husband, who made a fairly high income, suspected her of cheating. We followed her over a single weekend to see what she was doing when she left the house.
During that surveillance, it quickly became clear she was advertising herself online and meeting men at a motel. Over the course of the weekend, we documented multiple different men coming and going, and we were able to match the activity to her online listings, which confirmed what was happening.
Marriage ruined
Being a P.I. can be interesting in a lot of ways, but it can also have unintended personal consequences. A couple of years ago, while investigating something through an adult dating site, I came across photos of a woman I had known in high school—someone I used to have a crush on. Her husband had uploaded images of her, including identifiable ones, in an attempt to meet other women.
In situations like that, it's not uncommon for people to use their partner’s photos under false pretenses to try to arrange encounters or even set up situations like threesomes without their partner’s knowledge. She had no idea the profile existed, and when she found out, it severely damaged her marriage and also changed our own connection. Even though we weren’t especially close anymore, it still made things awkward between us, and it was a difficult situation all around once the truth came out.
"Dead" for 20 years
I'm a lawyer who does background investigation work on witnesses for cases, and during one review I came across someone who appeared to be living under the identity of a person who had died as a child.
After flagging it to my boss, federal authorities got involved and determined that the individual had actually faked his own death about 20 years earlier to avoid an embezzlement trial. In the course of maintaining that false identity, he had been filing taxes and conducting official business under the assumed name, which ultimately led to his conviction related to identity fraud. The original embezzlement case itself wasn’t something I was directly involved in and remains unclear from my perspective.
Going viral
My wife used to work as a private investigator, mostly handling insurance fraud cases where she would document claimants who said they were too injured to work. On one of her final assignments, she was staking out a house trying to catch a man who claimed he couldn't do physical activity due to a car accident.
As she began recording, expecting to capture something like yard work or heavy lifting, the man instead walked out onto his front step and behaved in a completely unexpected and inappropriate way before going back inside. The footage became infamous within her office, more for how shocking and absurd it was than anything related to the actual investigation.
Catfishing her own dad
We had to follow a cheating husband to a beach in Florida, and on paper it was one of the better assignments because it meant long days in a nice coastal town while gathering surveillance footage. The downside was having to stay up late documenting activity after he and his partner went to bed, so sleep was limited even though the location was great.
What made the case unusual was that the daughter ended up helping gather additional evidence by catfishing her own father, and we also discovered he had a very weak password on a dating site that gave access to his messages and plans. Despite having clear proof of infidelity, it was frustrating because these cases often don't lead to lasting change—clients sometimes reconcile or stay together anyway, which can undermine the practical impact of all the documentation collected.
Undercover P.I.
An old professor of mine had a wife who worked as a private investigator. She was quite small in stature, with gray hair, a warm smile, and a very approachable presence that made her seem more like a friendly grandmother than someone in investigative work.
That unassuming appearance actually made her very effective in her job, since people tended to let their guard down around her. She was able to gather information and access details by simply talking with people in a natural way and getting them to open up, which made her a surprisingly skilled investigator in situations where discretion and trust mattered.
Scandal within the church
There was a Seventh-day Adventist woman in an abusive marriage who wanted to get a divorce, but she believed she couldn't proceed without her husband’s permission, which he refused to give. She came to us asking for very unconventional help in trying to force a resolution to the situation.
Her idea was to hire someone to seduce her husband and record it as evidence, with the intention of sending the footage to church leadership to demonstrate that the marriage had irreparably broken down. It was a highly unusual request, and it highlighted how desperate she felt about being unable to leave the relationship through normal channels.
Not the smartest plan
I had a client who was already serving a 20-year sentence for attempting to hire a hitman—who turned out to be an undercover officer—to kill a friend. While incarcerated, he somehow came into money and hired me to try to help prove his innocence.
His proposed "strategy" was to have us contact the key witness and essentially threaten him by saying that, if he didn't recant his testimony, the client would use his newfound money to hire a hitman “for real this time.” The absurd part is that he explained all of this to me during a recorded phone call from prison, seemingly unaware of how badly that undermined his own position.
Not facing facts
I got hired by a wife to determine whether her husband was sleeping with his secretary. We followed them and documented them going into his single-bed hotel room after dinner around 10:20 p.m., then leaving together the next morning at about 8 a.m.
From an evidence standpoint, it was a pretty straightforward case, but the client's reaction was unexpectedly heartbreaking. Instead of accepting what we had captured, she went into denial and insisted it didn’t prove anything, suggesting they could have simply been working late. It was a difficult moment because she was the one who had hired us to find answers in the first place.
No one suspected a thing
A woman I know had to hire a private investigator as part of her divorce case, since proving infidelity required specific documentation showing the husband going to the other woman's house after 10 p.m. and staying for at least an hour.
The investigator was very unassuming—just a mild-mannered woman in her 50s, someone you wouldn’t expect to be doing surveillance work at all. Because of that, she was able to blend in easily, and the case ended up being a straightforward "slam dunk" from an evidence standpoint.
Asleep on the job
I used to do background checks for employment, and one of the more memorable cases involved a man working for a large provincial hydro company who was being reviewed as part of a promotion process. As part of his job, he had to travel to remote sites several hundred kilometers away.
On one assignment, he relied entirely on GPS to get there. When the signal dropped partway through the trip, he simply turned around and went home without calling anyone or trying any other way to navigate. On another occasion, he was supposed to be surveying sites by boat, but was reportedly found asleep while drifting around instead of working. Despite those issues coming up in the review, he still ended up getting the promotion he was seeking.
Who burned it down?
I'm a private fire investigator, and I once had a homeowner claim that the church across the street had been gathering in the street and praying as a group for his house to burn down.
When I looked into it, that version of events didn’t hold up. In reality, the fire was linked to the tenant living in the property and her boyfriend, who was ultimately responsible for setting it. It turned out to be a very different situation than the theory involving the church, despite what some of the initial claims suggested.
Got him!
I've been a P.I. for about three years, mostly working disability fraud cases rather than anything like infidelity. One of the more unusual subjects I observed was a low-level offender who claimed to be disabled but spent his days traveling from Walmart to Walmart.
At each location, he would load up a shopping cart full of energy drinks and then simply walk out without paying, placing everything in his trunk before moving on to the next store. By the end of the day, he would sell the bulk haul to a corner store for cash. I was able to document the pattern on video, including him collecting payment afterward, which ultimately led to the case being resolved.
Handling scammers
I deal with a lot of cases where older individuals receive phone calls from someone claiming to be the "IRS," and they end up buying large amounts of prepaid cards and reading the numbers over the phone to “pay” supposed tax debts. It's a surprisingly common scam, often carried out in different variations, but with the same basic pressure tactics.
What’s most troubling is how convincing it can be in the moment—otherwise careful people can be pushed into ignoring clear warning signs. Store employees sometimes even try to intervene when they see large gift card purchases being made under suspicious circumstances, but the victims will still insist they are doing the right thing because the caller has convinced them there’s an urgent legal or financial emergency.
That doesn't ring true
I'm a private investigator, and I’ve worked on a wide range of unusual surveillance requests over the years. Some assignments have come from small-town police departments asking for fairly routine monitoring, while others have been initiated by private individuals with much more personal suspicions.
I’ve been hired to observe situations like a Walmart manager who believed employees were talking about him, a tenant and landlord who were each separately watching each other, and even a retirement home case involving a 90-year-old resident with epilepsy where the concern seemed disproportionate to the actual circumstances. The most unusual one, though, was a client who insisted his neighbor was "a Soviet," which was the basis for hiring surveillance in the first place.
Busted!
The most fun I ever had on a case was a workers' comp investigation where the subject actually started recognizing my vehicle because I had been parked nearby so often over time. I ended up switching to a different car to avoid being made again.
At one point, the neighbor of the subject noticed me working and offered up his carport as a place to stay hidden, and we’d end up chatting while I monitored the situation. Most days were pretty slow, so we’d sit there behind cover, sometimes sharing drinks and just passing the time. I actually looked forward to that setup more than I should have, and when the case finally wrapped up, I was genuinely disappointed to leave it behind.
A little too honest
I once had a case where a man was suspected of setting his own house on fire. From the start, it was pretty obvious he was involved, and he knew I had already pieced most of it together. The situation itself wasn't complicated in terms of evidence, but getting him to actually talk about it was the tricky part.
What surprised me was how quickly things shifted once I stopped pushing and just treated him like a normal person. I ended up talking with him about everyday things like sports and general life, and after a while he relaxed enough that, right before I left, he flat-out admitted what he had done. It was one of those rare cases where the confession came not from pressure, but from simple conversation.
Gone in two days
I hired a private investigator to track down a customer who owed me over $10,000 for airplane repairs. The investigator was able to locate him in just a couple of days, which immediately helped move the situation forward.
It turned out the man had purchased a house under his deceased brother's name and was running a courier business using his aircraft. Because I already had a mechanic’s lien on another one of his planes, and the FAA implications created additional pressure, he ultimately had to repay what he owed. Interestingly, the P.I. even ended up waiving his fee because he felt the case had been resolved so quickly.
Babysitter intrigue
We had a babysitter we strongly suspected had been taking advantage of us, so after we ended the arrangement, we had our neighbor—who happened to be a private investigator—run a background check on them.
What came back was that almost every time something went missing, the babysitter also had some kind of scheduling conflict, like court dates or other legal issues tied to a long list of prior offenses. It was a pretty clear pattern in hindsight. Definitely one of those "run the background check first" situations.
Thinking on his feet
There are definitely some unusual requests out there. I once worked a case where a couple would, about once a year, essentially hire me to document the wife being intimate with another man at a run-down motel, with the expectation that I capture it from a clear vantage point.
The husband framed it as though he was actively trying to confirm suspicions, pointing out specific times and patterns in her routine, but the arrangement itself had an almost scripted quality to it. From my perspective, it was straightforward surveillance work with minimal risk of confrontation, but it stood out as one of those cases where the situation felt more complicated than the assignment on paper suggested.
Being watched
My ex hired a private investigator to gather anything they could find to portray me as an unfit mother during a custody dispute. The investigator surveilled my home, took photos and videos, followed me in public, and pulled material from my social media accounts.
Even normal, harmless moments were reframed as negative evidence—for example, a friend tagging me in a post saying "Drinking Friends, assemble!" was used to imply I was an alcoholic, despite me usually being the designated driver. Although the case settled before trial, the collected material continued to be shown in mediation and counseling settings, and it left me feeling watched and anxious in public spaces long afterward.
The unreal man
I hired a private investigator to determine whether a man listed on my birth certificate was actually real. My father—who I'll call Henry—passed away when I was 15, and after a strained relationship with my mother, I moved out as soon as I turned 18. She had always refused to provide my full birth records, so I eventually requested a copy directly from the state.
When I received it, I saw a name listed for my father that I didn’t recognize: "Michael." When I asked my mother about it, she admitted she had fabricated the information entirely. To confirm whether this person existed, I hired a P.I., but it ultimately turned out she had simply made up the name.
Dan Gray
