The Justice Department will strengthen its procedures for acquiring records from members of Congress, Attorney General Merrick Garland stated on Monday, after it appeared that the agency during the Trump administration privately seized data on the communications of Democrats on the House Intelligent Committee.Mr. Garland stated that he directed his deputy, Lisa Monaco, “to evaluate and strengthen the department’s existing policies and procedures for acquiring records of the legislative branch.”The move comes days after Democrats on the committee stated that they have learned that records from members and staff were seized by the Justice Department under former President Donald Trump in an apparent search for the source of leaks of sensitive information to the news media. Apple Inc. told committee members last month that the Justice Department had served grand jury subpoenas on the tech behemoth in February 2018, when Mr. Trump had complained about leaks related to contacts between Russia and figures in his 2016 election campaign and then-special counsel Robert Mueller’s investigation into those ties.Senate Democrats have called for Mr. Trump’s attorneys general, Jeff Sessions and William Barr, to testify under oath regarding the subpoenas, and the Justice Department’s inspector general launched a review at Mr. Garland’s request into whether the requests were inappropriate.