Former In-Law of Trump Executive Gives Prosecutors Boxes of Documents

The handover of the documents suggests prosecutors are stepping up pressure on the executive, Allen H. Weisselberg.

The former daughter-in-law of a Trump Organization executive on Thursday turned over boxes filled with financial documents to Manhattan prosecutors who are investigating former President Donald J. Trump and his business, according to her representatives. Investigators for the district attorney, Cyrus R. Vance Jr., acting on a grand jury subpoena, collected several boxes of documents and a laptop from the Upper West Side apartment of the woman, Jennifer Weisselberg, who was married to a son of the longtime Trump executive Allen H. Weisselberg. The handover of the documents offered the latest suggestion that prosecutors looking into possible fraud by Mr. Trump and his company are stepping up pressure on Mr. Weisselberg, the company’s chief financial officer, who has for decades looked after the Trump Organization’s finances and could provide essential insider knowledge to investigators.