An ICE “raid” is when ICE agents or groups of ICE agents come to a worksite or office of an employer without warning in order to investigate the employer or the employees working there. This is different from an ICE audit when ICE officers give the employer a Notice of Inspection and gives the employer three (3) days to produce the documents requested by ICE.
A raid is a sudden and unannounced physical inspection of the worksite, the premises and the documents and records kept in a worksite. A raid in aid of investigation is a fishing expedition for evidence to use against an employer or aliens employed by the employer. Fishing expeditions are not allowed.
When ICE agents come into your worksite without a warrant of arrest or a search warrant, employers and their employees (especially those in the frontline such as reception desk) can refuse the ICE agents entry into the premises.
The difficulty faced by employers and front-line employees is that ICE officers often wear vests that say “Police” or “federal agent” on them. Sometimes, police officers in the locality accompany the ICE agents in these raids. When this occur, employers are still within their rights to deny the police officers and the ICE officers entry into the workplace if they cannot produce a warrant of arrest or a search warrant.