BORDER PATROL CHECKPOINTS INSIDE THE UNITED STATES
An immigration checkpoint inside the United States is different from inspection at the actual international border. CBP states that agents at a reasonably located immigration checkpoint may briefly question vehicle occupants about citizenship and immigration status and make observations, but checkpoint authority does not automatically authorize a full nonconsensual search of every vehicle.
Current CBP guidance explains that Border Patrol uses permanent and temporary checkpoints as part of its enforcement activities near the external boundaries of the United States.
CBP identifies INA §287(a)(3) and 8 C.F.R. §287.1 as authority for certain immigration-enforcement activity within a reasonable distance of an external boundary. The regulation defines that distance as 100 air miles.
The 100-mile rule does not mean Border Patrol has unlimited authority to search every person, home or vehicle anywhere within 100 miles of the border.
CBP’s current checkpoint guidance states that agents may question vehicle occupants about citizenship and request immigration-status documents at reasonably located immigration checkpoints without individualized suspicion.
CBP also describes agents as able to make quick observations of what is visible in the vehicle during checkpoint processing.
CBP expressly states that checkpoint authority does not give Border Patrol agents carte blanche to automatically search people and vehicles.
CBP’s current public guidance states that agents must develop probable cause for a nonconsensual vehicle search beyond the limited checkpoint inspection.
CBP states that probable cause may develop from agent observations, records checks, non-intrusive canine sniffs and other lawful investigative means.
A motorist may consent to a vehicle search. CBP’s own guidance states that motorists are not required to consent.
The limitations described for an interior checkpoint should not be imported wholesale into the actual international-border inspection, where separate border-search authority applies.
No. The 100-mile regulation concerns specified immigration-enforcement authority and does not convert the entire zone into an international port of entry.
Yes. CBP states that agents may briefly question occupants about citizenship and immigration status at reasonably located checkpoints.
No. CBP expressly states that checkpoint authority does not automatically permit full searches of people and vehicles and identifies probable cause as the basis for a nonconsensual vehicle search.
That location can materially change the legal framework governing questioning, observation, consent and vehicle searches.