A top D.C. lawmaker said she’s concerned about an effort by Mayor Vincent Gray’s administration to tighten the city’s open records law, a move that would reduce the number of documents available to the public at a time when District officials — including Gray — are the subjects of criminal probes.

“It would appear that the mayor’s proposal backtracks,” said Ward 4 Councilwoman Muriel Bowser, who chairs the council committee that handles Freedom of Information Act, or FOIA, matters.