1. If the third party and the cheating party apply for a marriage certificate separately or live together in the name of husband and wife, the other spouse can apply to the People's Court Prosecute the third party for bigamy;
2. If there is no such situation and the third party does not commit a crime, one spouse can have a showdown with the third party and persuade him to leave.
Whether cheating constitutes a crime depends on the specific circumstances, as follows:
1. Generally cheating will only be morally condemned and will not be illegal;
2 , If it constitutes cohabitation, the at-fault party may claim for divorce damages;
3. If it constitutes bigamy, criminal liability must be investigated in accordance with the law and the person shall be sentenced to fixed-term imprisonment of less than two years or criminal detention. Solutions to cheating:
(1) "Guarantee", "apology", etc. The fact of cheating is suddenly exposed, and the parties concerned write a letter of guarantee in desperation, etc. To show repentance, this is the key evidence of the other party’s cheating;
(2) If the other party engages in prostitution, the police will usually intervene, and the police records can be used as evidence;
(3) When the unit detects an employee's extramarital affair, it will sometimes deal with the employee's lifestyle issues;
(4) Correspondence, text messages, emails, etc. between both parties. In addition to written evidence, such evidence includes text messages, emails, etc. It should be notarized and then submitted to the court as appropriate;