The Police Officer Who Sends a Courier
Practice spotting courier fraud: the fake detective, the phone line that stays open, the cash or bank card "for evidence" and the courier at your door.
Scam simulator · At your door
A polite man knocks and says he’s spotted loose tiles on your roof. He offers to take a look for free. Practice what to do, and see how a friendly chat on the doorstep can end with thousands of dollars gone and a roof that still leaks.
Why it matters: A widow in her 80s in England was told her roof tiles were loose and quoted £14,200 for repairs. An independent surveyor later found no significant problems, just a small maintenance job costing no more than £1,250. The two traders were jailed in February 2026. (Buckinghamshire Council Trading Standards, February 2026)
It’s a sunny Thursday morning and you’re at home on your own. There was a strong wind last week, and you’ve been meaning to get someone to look at the gutters.
Below, each step shows what you'd see, the choices people make, and why each one is safe or risky. The summary at the end tells you what to look for and what to do.
You'll see each message or call as it would really look. Choose what you'd do, and you'll find out why. Nothing here is real: no messages are sent and nothing you choose leaves your device.
There’s a knock at the front door. A friendly man is standing on the step, and a van is parked on the street.
A man in his forties wearing a bright safety vest and holding a clipboard. Behind him is a white van with a ladder on the roof rack. There’s no company name on the van.
What do you do?
You didn’t call anyone. Who decided your roof needs work?
Say yes. It’s free, he’s polite, and I’d rather know if there’s a problem.
Risky choice (your choice)
This is what he’s hoping for. Once he’s on your roof, only he can see what’s up there, and whatever he “finds” will be hard to argue with. The free look costs him nothing, because it’s how the sale begins.
Take his business card and say I’ll think about it.
Better, but not the safest (your choice)
Better than saying yes, because you haven’t agreed to anything. But anyone can print a card, and he may keep talking or come back. A polite no is simpler, and if you’re worried about the roof, you choose the roofer.
Say “No thank you, I don’t deal with people who knock at the door,” and close the door.
Safe choice (your choice)
That’s the safest answer. You don’t need to give a reason or be rude. If you’re worried about the tiles, ask a family member to help you find a local roofer you’ve chosen yourself.
Red flags at this step
What's really going on
This is a typical start to a doorstep roofing scam. In a case from Buckinghamshire, England, two traders told a widow in her 80s that her tiles “were loose and would need replacing”. Age UK lists traders who say they’ve noticed something wrong with your home as one of the common doorstep scams aimed at older people.
Many people do let him look, because it’s free and he seems kind. Here’s what happens. Ten minutes later he climbs down holding something.
He’s holding a dark, crumbly piece of wood about a foot long. On his phone he shows you photos of cracked tiles and a wet, rotten beam.
He's showing you the wood and the photos. What do you think?
Did you see him take that wood from your roof? Can you tell whose roof is in the photos?
Believe him. He’s holding the proof, and I don’t want my ceiling coming down.
Risky choice (your choice)
That’s how most people would feel, and it’s what the wood is for. You didn’t see where it came from, and the photos could be of any roof. Worried and in a hurry is exactly how he wants you to decide.
Ask him to hold the ladder so I can climb up and see for myself.
Risky choice (your choice)
Please don’t. Climbing a ladder is a real risk, and even from up there it’s hard to judge how serious a problem is. Checking a roof is a job for a roofer you have chosen, not the man who wants to sell you the repair.
Thank him, say I’ll have my own roofer check it, and close the door.
Safe choice (your choice)
That’s right. If there really is a problem, a roofer you choose will find it and give you a written quote. A second opinion costs little, and it can save you thousands.
Red flags at this step
What's really going on
In the Buckinghamshire case, the traders came down with “a piece of rotten roof batten which they claimed had come from her roof” (a batten is a strip of wood that holds the tiles) and said more significant work was needed. An independent surveyor later found no significant issues with her roof. You have no way of knowing where a piece of wood came from, or whose roof is in a photo.
Suppose you’re still listening. He puts the wood down and writes something on his notepad.
He tears off a page from his notepad with a price on it. There’s no company name, address or license number on it.
What do you do?
Would a fair price disappear if you took a day to think about it?
Shake on it. Half price is a good deal, and more rain is coming.
Risky choice (your choice)
The “normal” price is made up, so there’s no real saving. With no written quote, there’s no record of what was agreed, what work will be done, or who you’re dealing with.
Ask for his license number and a written quote, and tell him I’ll think about it.
Better, but not the safest (your choice)
Much better. A license can be checked on the official register where you live, and a written quote is a record. But even a real license doesn’t make a doorstep price fair, so get other quotes from roofers you find yourself.
Say no thank you. If the roof needs work, I’ll get written quotes from two or three licensed roofers I find myself, and talk it over with family.
Safe choice (your choice)
That’s the way to do it. Quotes from roofers you choose, compared side by side, show you what the job really needs and what it should cost. Talking it over with someone you trust takes the pressure off.
Red flags at this step
What's really going on
The FTC lists these as signs of a home improvement scam: knocking on doors because they’re “in the area”, saying they have “materials left over from a previous job”, and pressuring you for an immediate decision. It advises getting written estimates, comparing several, and checking a contractor’s license with your state or county government. The Buckinghamshire traders quoted £14,200.
Suppose you say yes. He’s pleased, and says his crew can start this afternoon. Then he mentions one more thing.
He’s standing by the van with the engine running and the passenger door open.
What do you do?
A few minutes ago he had materials left over. Why does he need cash to buy them now?
Get in the van. It’s kind of him to drive me, and the bank is only ten minutes away.
Risky choice (your choice)
Once you’re in his van, you’re on his schedule and away from anyone who could help. At the bank, he’s waiting outside, so it’s much harder to change your mind. The cash goes straight to him, and once it’s handed over it’s very hard to get back.
Write him a check instead of taking out cash. It’s safer.
Risky choice (your choice)
A check feels safer, but it only helps if you can stop it in time. In the Buckinghamshire case, the widow’s £8,000 deposit check was made out to one of the brothers personally. It was cashed right away and the money taken out in cash.
Say no. I never go to the bank with a tradesperson. I close the door and call a family member.
Safe choice (your choice)
That’s exactly right. A real business doesn’t drive customers to the bank for cash. If he won’t take no for an answer, or won’t leave, call the police.
Red flags at this step
What's really going on
In April 2026, police in Sydney, Australia warned about a man who told a 73-year-old woman her building’s roof needed urgent repairs. The next day he drove her to her bank and pressured her into writing a check for tens of thousands of dollars. She canceled the check and called the police. Their advice is simple: “Don’t accompany them to a bank.”
Suppose the work begins. An hour later there’s another knock, and he looks serious.
Tiles are stacked on your lawn and part of the roof is open to the sky. He’s dusty and frowning.
What do you do?
With the roof open, who holds all the cards? Do you have to agree to anything extra?
Agree. The roof is open, so I can’t really say no now.
Risky choice (your choice)
That’s the trap. The price has now more than doubled, and there may be more “problems” still to come. Each yes makes the next one feel harder to refuse.
Ask him to show me the rotten wood first.
Risky choice (your choice)
He’ll be happy to show you a piece of rotten wood. As before, you can’t tell where it came from or how serious the problem is. It only makes the new price feel more believable.
Tell him I won’t pay anything more. Then call a family member, and get a roofer I choose myself to check what’s been done.
Safe choice (your choice)
Well done. You don’t have to agree to extra work, however it’s put to you. A second opinion will show what really needs doing, and a family member can help you deal with him.
Red flags at this step
What's really going on
Finding new problems once the work has started is a common part of these scams, because it feels impossible to say no with your roof open. You can say no, and you may even be able to cancel the whole agreement. In the US you usually have three business days for most sales made at home, and in the UK 14 days. In Australia you have 10 business days, and during that time an uninvited seller generally isn’t allowed to take payment or start work.
Suppose someone did pay. Two weeks later, after a night of heavy rain, they notice something on the bedroom ceiling.
Two weeks later. There’s a brown damp patch spreading across the bedroom ceiling. The phone number he wrote on a scrap of paper goes straight to voicemail. The van hasn’t been back.
What do you do now?
Who can actually help now? Be wary of anyone who offers to get your money back for a fee.
Keep trying his number, and wait for him to come back and fix it.
Risky choice (your choice)
It’s natural to hope he’ll come back and put it right. But a trader you can’t reach after you’ve paid may never return, and every week you wait makes it harder to stop a payment or find him.
Search online for a company that promises to get money back from rogue traders, and pay their fee.
Risky choice (your choice)
Be careful. People who have lost money are often targeted again by “recovery” services that charge a fee and recover nothing. Reporting a scam to your bank and the authorities is free.
Call my bank, report the trader, and ask a licensed roofer I choose to check the roof. Tell family and neighbors too.
Safe choice (your choice)
That’s the right move. Your bank may be able to stop a check or payment that hasn’t cleared. Reporting helps the authorities catch these crews, and warning your neighbors protects them too.
Red flags at this step
What's really going on
NSW Fair Trading in Australia described a homeowner who paid $5,200 for roof cleaning, sealing and painting. Two weeks later it rained, water leaked inside the house, and the trader couldn’t be contacted. Reporting does make a difference: the Buckinghamshire traders were investigated by Trading Standards and jailed in February 2026.
A few weeks later, there’s another knock. It’s a different man, but he seems to know all about your roof.
A younger man with a clipboard. A different van is parked outside, with a phone number painted on the side.
What do you do?
How does a stranger know about your roof? What happens if you say yes this time?
Let him look. Maybe his crew can fix what the first one got wrong.
Risky choice (your choice)
This is often the same crew, or people they’ve passed your address to. The “good price” for a customer is the same trick as the half-price deal the first time.
Say no, but take his flyer in case I need the gutters done later.
Better, but not the safest (your choice)
You haven’t agreed to anything, which is good. But keeping the flyer leaves the door open, and he now knows you’ll talk to him. If you need gutters done later, choose the tradesperson yourself.
Say no through the door, and call the police if he won’t leave. Then report it and warn the neighbors.
Safe choice (your choice)
That’s right. You don’t have to open the door to anyone you weren’t expecting. Reporting the visit, with the van’s description and number, helps the authorities and your neighbors.
Red flags at this step
What's really going on
Once someone has paid a doorstep trader, they may be visited again by the same crew or by others who have been given their address. In the UK, Age UK suggests putting up a “No cold callers” sign, which you can get from your local council or print yourself. It makes it easier to say no, and to close the door.
The man wasn’t working on a roof down the street. Crews like his work their way along streets, and they often target older homeowners, especially people who live alone. The loose tiles, the rotten wood, the half-price deal and the ride to the bank were all part of the script. The deposit was the goal, and any work was quick and poor, if it happened at all. Saying no at the door, and choosing your own tradespeople, stops it at the first step.
Test your family
Send this simulator to a parent, grandparent or friend. They try it on their own phone or computer, and at the end they can send their score straight back to you, so you can see which steps caught them out. Then talk it over together.
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You were challenged
Finish the simulator above, then you can send your score back. They'll see which steps you got right, and which ones caught you out.
Only your first name and which answers you chose go in the link, after the # sign. Nothing is sent to us.
From simulator to confidence
This simulator is one scam. Scam-Proof puts 50 of today's scams in one calm, large-print book to keep by the phone, for you and the people you love.
This scam is in the book. Scam 44 in the book's 50-scam library covers the doorstep repair offer, and Chapter 1 shows the three-part pattern behind it and almost every other scam.
254 pages · 16-point large print · paperback and Kindle ebook · written for older adults and the families who help them
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Summary · keep this
Remember: Never agree to work from someone who knocks on your door. If something needs fixing, choose the tradesperson yourself, get it in writing, and never go to the bank with a trader.
Don't be embarrassed. These scams are run by professionals, and acting fast gives you the best chance of stopping the damage.
Phone numbers and web addresses were checked on 28 September 2026. They can change; if one doesn't work, search for the organization's official website, and please let us know.
The people, numbers, companies and web addresses shown in this simulator are made up. The way the scam works is taken from real cases reported by police, regulators and consumer groups.
Practice spotting courier fraud: the fake detective, the phone line that stays open, the cash or bank card "for evidence" and the courier at your door.
Practice spotting a fake "we've changed banks" email step by step: the look-alike address, the rush, the name-check warning and the call that stops it.
Practice spotting a fake disaster appeal step by step: the heartbreaking post, the gift-card donation page, the pledge call and the collector at the door.

Printable wallet cards, a family safe-word sheet, easy AI prompts and a trusted-numbers sheet for beside the phone. Free when you join the Plainspoken Tech letter.