'Love rat' investigator says she uses one 'loyalty check' to test if someone's partner is faithful

A lot of people in relationships may have had the dreaded thought of their partner potentially being unfaithful.

However, according to a 'love rat' investigator that only works for women, there's one key 'loyalty check' that can sniff out cheating partners.

It's Madeline Smith's full time job and she claims to have exposed a whopping 1,000 cheats in her time, going to any length necessary to catch them in the act, from social media to getting involved herself.

For as little as $30 (£23), she does everything she can to expose the cheaters, being inspired by TV show Cheaters.

Madeline is a pro at catching disloyal men in the act. (SWNS)

In fact, she is in a relationship herself, but aims to catch cheating men out to save other women from being caught in toxic situations.

Essentially a private investigator, she has several phones and accounts which she uses, as the Los Angeles-based sleuth messages men who have been under suspicion from partners to test their loyalty.

How far she goes is up to the client, and it can even go as far as sending nudes - if that's what they want.

She explained: "There are so many types of guys and I know exactly how to play each one - smart guys, dumb guys, suspicious guys,

"I feel so much of it is intuitive. I can look at a profile and immediately know [a guy's] personality," she said.

She says that she formed the loyalty test in 2018, using her experience over the years, coming up with a formula that can sniff any cheater out.

Women who are fearing the worst can contact Madeline by filling out a form, disclosing information about the relationship such as past offences, and also disclose how aggressive they would like her to be.

It can get incredibly dangerous sometimes though, when she will advise the woman in question to seek legal help.

Madeline says it can take anywhere from five minutes to a few days to get in touch with the men in question, and the response time is already telling enough as it is.

Snapchat is one of the biggest tell-tale signs, apparently. (Getty Stock Photo)

Having busted married men with children with debts due to their infidelity, to men she has sexted while asking specific questions about 'circumference or diameter', it really gets that deep.

But there is one fool-proof test that can be used, and if he ticks the boxes, he might be unfaithful, according to Madeline.

Here are the five red flags that could indicate infidelity:

1. They use Snapchat (a lot)
2. They often hide their passcode and notifications, maybe putting their phone face down
3. You have a intuitive/gut feeling (it is often right)
4. If he's constantly jealous and making accusations
5. They expect you to have extremely strong boundaries with men meanwhile they indulge in any kind of female attention

Apparently, 80 percent of Madeline's messages are about repeat offenders. I guess it really is once a cheater, always a cheater.

She also posts videos about her ventures on TikTok, though none of her methods violate any laws.

The 30-year-old says that she has a legal team that ensures that she adheres to all laws across the states.

Suspecting women simply need to fill the form in on TikTok, select which 'test' they want her to carry out, and they'll soon find out.