INA §287 (2011): Powers of immigration officers and employees

a.: Powers without warrant
b.: Administration of oath; taking of evidence
c.: Search without warrant
d.: Detainer of aliens for violation of controlled substances laws
e.: Restriction on warrantless entry in case of outdoor agricultural operations
f.: Fingerprinting and photographing of certain aliens
g.: Performance of immigration officer functions by State officers and employees
h.: Protecting abused juveniles

§ 287 (8 USC 1357) Powers of immigration officers and employees