Investigators swept Rikers Island Monday, searching guards, inmate cells and offices as part of a probe of alleged drug and weapons smuggling by correction officers, officials said.
Some 75 locations throughout the facility were searched, according to the Department of Investigation and the Department of Correction.
In addition to possible smuggling, authorities said investigators are looking into allegations of assault and falsifying records.
DOI Commissioner Mark G. Peters and DOC Commissioner Joseph Ponte said in a joint statement that as many as 12 officers are expected to face charges.
The city’s largest jail has a staff of about 9,000 officers with an inmate population of more than 12,000.
A spokesman for the Correction Officers Benevolent Association said he would look into the matter.