Verify that your information is correct. If you suspect that a marriage is a sham marriage and that the two parties are abusing the system to obtain a Green Card, make sure that your accusations are worth investigating. The Department of Homeland Security handles all visa fraud investigations and its time needs to be spent wisely. All accusations of fraud must be investigated, so make sure that you understand the situation at hand and that your accusations are not being made out of speculation, a rumor or a "feeling."
If the couple is currently in the United States, notify the Department of Homeland Security's United States Immigration and Customs Enforcement. The Department of Homeland Security handles many cases of visa and marriage fraud. You can notify them by dialing 1-866-DHS-2-ICE (1-866-347-2423).
If the spouse has yet to arrive in the United States, notify the United States Embassy, in the region where he or she is applying, of the fraudulent activity. When you notify the embassy, the immigration officer handing the case will investigate the visa application closely and exercise extra caution when issuing the K3 visa.
- bride and groom image by Lars Christensen from Fotolia.com