There are multiple forms of surveillance and observation that may be required to catch a cheating spouse, such as cellphone and call log monitoring or even following them to suspected tryst locations. Being discreet and not getting caught snooping is crucial to being successful states The Truth About Deception.
A sudden change in your spouse's behavior may lead you to believe that he might be having an affair. Before you confront him, make sure that this really is the case.
First, keep track of your spouse's activities. Check his phone to see if there are unusual calls, especially frequent ones. Check his receipts to see if he is making suspicious purchases. Monitor his credit card usage to learn about where he is going and the items on which he is spending his money, such as jewelry, hotels and romantic restaurants.
Consider purchasing software to monitor online activity, cell phone activity monitoring applications, GPS tracking devices that constantly display the location of your spouse's vehicle, easy-to-hide cameras, and voice-activated recording devices, all of which are readily available through online sources. The ways in which these programs and devices can be legally used varies by state.
Alternatively, hire a private investigator.
There are many ethical concerns brought up when it comes to spying on spouses, and the most prescribed method of communication should always be talking and asking questions says The Truth About Deception. In a situation where infidelity may be present, however, most spouses will not answer truthfully when confronted about it. If possible, find any proof necessary that can catch the person in a lie, even if it seems small or unrelated.
After proof has been gathered, make sure that it is tangible and can be shown to the spouse so he cannot deny being compromised. When a sufficient number of lies have been collected or something that directly incriminates him comes to light, then it's possible to accuse him of infidelity. Never confront a spouse without proof of the infidelity or run the risk of an extreme denial. A spouse who is caught without proof is one who will try to turn the tables and make it seem like the accused party is paranoid or suspicious for no reason. Avoid circumstances such as these if at all possible, warns The Truth About Deception.