Guidance

US Constitution: key amendments affecting immigrants are:

First amendment: Freedom of Religion, Speech, Press, Assembly, and Petition
Fourth Amendment: Search and Seizure
Fifth Amendment: Grand Jury, Double Jeopardy, Self Incrimination, Due Process, Takings
Sixth Amendment: Right to Speedy Trial by Jury, Witnesses, Counsel

Undocumented immigrants are subject to US Constitution: read more on the additional applicability and court decisions affecting immigrants

ACLU guide to immigrants’ rights