How long does a private investigation actually take?
One of the questions I hear most often during that first phone call is: “How long is this going to take?”
The short, honest answer? It depends. But I’m not here to give you the vague “it varies” answer. Below I’m laying out realistic timelines for every major case type I actually work on, based on hundreds of cases I’ve closed. These are the numbers I give clients in my office in plain English — no sales fluff.
First, the Big Factors That Move the Clock
Before the case-type breakdown, here’s what actually controls the timeline in real life:
How much solid info you bring me on day one (names, addresses, phones, social media, vehicle details, etc.)
Complexity and number of people/locations involved
Whether surveillance is needed and how many hours the budget allows
Travel, weather, jurisdiction issues, and court-record delays
How “slippery” the subject is (some people are ghosts; others are creatures of habit)
Give me great starting intel and a realistic budget? We move fast. Vague details and a shoestring budget? We grind longer.
Private Investigations take time. How much varies on many factors. It’s best to make that call as soon as possible because while you might feel like waiting, your situation will probably not improve with time,
Realistic Timelines by Case Type
A table I put together detailing reasonable expectations for certain case types. Remember that while this is a good estimate, each case is different and may not fit the above.
Real-World Examples from My Files
Infidelity case last month: Husband suspected wife was meeting someone during “gym time.” We ran 3 days of afternoon surveillance and caught it on day 2. Total active time: 14 hours. Client had closure in under a week.
Missing daughter: Mom had only a 3-year-old last-known address and a deactivated phone. We located her safe (but estranged) in another state in 11 days.
Insurance fraud: Carrier suspected claimant was faking a back injury. We documented him lifting heavy boxes and playing basketball over 9 days. Case settled fast.
Asset search before a big lawsuit: Client thought the defendant was broke. Found three properties and two bank accounts in 8 days. Lawsuit proceeded; judgment is now collectible.
Just like building a house, an effective investigation starts with a solid foundation. Being transparent about information and budget goes a long way toward setting and reaching realistic goals.
What You Can Do to Make Your Case Move Faster
Bring everything you have — even the stuff that seems unimportant.
Be honest about your budget upfront (I’ll tell you exactly what’s realistic).
Be available for quick follow-up questions.
Understand that quality evidence takes time — I won’t rush and risk inadmissible results.
Bottom Line
Most private investigations I handle fall somewhere between 3 days and 4 weeks. Only the truly cold or international ones stretch into months, and even then we usually deliver meaningful progress reports every 7–10 days.
If you’re sitting there staring at your phone wondering whether you should call a PI, here’s my promise: during our free, no-pressure consultation I will give you a custom timeline and cost range specific to your situation — not industry averages. You’ll walk away knowing exactly what to expect, even if the answer is “this one might take a while, here’s why.”
Ready to get answers instead of more questions? Drop me a line, shoot me a text, or book a call on my calendar. The truth is out there — and I’m pretty good at finding it on a reasonable schedule.
Stay safe out there,
—John the PI
P.S. Every case is different, and these timelines are based on my actual experience plus industry benchmarks. Your results may vary — but you’ll know the realistic range before you ever sign anything.