The F.B.I. has opened a civil rights investigation into the actions of Houston police officers in connection with a drug raid that ended in a deadly shootout last month, the federal agency and the Houston Police Department announced on Wednesday.

In a statement, the Federal Bureau of Investigation specified that it was investigating allegations that a search warrant that was executed at the beginning of the deadly Jan. 28 raid “was based on false, fabricated information.” Chief Art Acevedo has said that one of his narcotics officers, Gerald Goines, lied about using a confidential informant to justify searching the home. The chief has placed Officer Goines on administrative leave.

Chief Acevedo said in an afternoon news conference that the F.B.I.’s investigation would be “collaborative” but also “independent” of the one his department was already conducting.

“We welcome that in the spirit of transparency,” he said.

Also on Wednesday, the Harris County District Attorney’s Office said it had begun a review of more than 1,400 criminal cases spanning Officer Goines’s career, 27 of which are active.