Montgomery County announced Tuesday that it will no longer honor requests by federal immigration authorities to detain prisoners beyond their scheduled release dates unless there is probable cause under the Fourth Amendment.

The county had previously accepted notices from Immigration and Customs Enforcement (ICE) — known as ICE detainers — that it wanted to take custody of an immigrant prisoner, usually for deportation proceedings.

The policy prompted Council member Nancy Navarro (D-Midcounty) to ask Leggett to review county procedures. In a letter to Navarro Tuesday, Leggett said he had already been looking into the matter. After meeting Monday with department heads and executive staff, Leggett ordered an end to blanket acceptance of ICE detainers.

Leggett said he reviewed an August advisory from the Maryland Attorney General’s office warning that localities could be liable for damages by detaining prisoners beyond their release date without probable cause.