South American theft groups
South American theft groups, sometimes referred to as crime tourists or Chilean tourist burglars, known in Chile as lanzas internacionales are an ongoing, worldwide phenomenon of organized crime where a group of bandits arrive to a foreign country as "tourists", often originating from South America, specifically to target wealthy households, before returning to their country of origin. The phenomenon is not confined to a single cohesive group, but is rather a pattern observed across multiple independent criminal enterprises. Vanity Fair has reported a wave of this type of crime occurring in California that has been ongoing since 2016, according to an unnamed FBI special agent. The Electronic System for Travel Authorization or ESTA, has been referenced as having enabled this type of crime in the United States as it grants "virtually automatic" 90-day visa waivers to member countries' citizens. California Senate Bill 54 (2017) or "SB 54" has also been referenced as a reason for California being a common target, as it limits local authorities' ability to share information with the federal government in the enforcement of immigration law. As of January 2022, the FBI has a task force dedicated to this crime ring. Arrests have been made in the United States, Australia, and the United Kingdom in connection with these crime rings. According to the FBI, these groups have been operating in the U.S. since the mid-1980s. Examples
 Herrera-Maldonado gang, Chile -> New York - 20+ residential break-ins in Nassau County, estimated $5M value
 Vallejos-Vera group, Chile -> United Kingdom - 5+ break-ins, 170,000 GBP estimated value
 Australian syndicate - $1M estimated value
 Simi Valley syndicate - estimated 20 burglaries

Patterns
Unarmed burglars
Acquiring rental cars with false identities
Using burner phones for communication between group members
Targeting wealthy neighborhoods and homes, specifically empty homes
Stealing watches, jewelry
Frequently originating from Chile, sometimes Colombia
Due to the high success rate of these criminal networks, high bail is often paid quickly by associates and the subjects skip court

References

Gangs
Organized crime