WASHINGTON (Reuters) - In the months before former President Donald Trump left office in January, the U.S. Supreme Court briskly paved the way for the lethal injection of 13 federal inmates, the first federal executions in 17 years.

In many of those cases, the court summarily overturned lower court rulings using an obscure legal procedure known as the “shadow docket.” But the short-circuit approach, intended only for emergencies, isn’t reserved for death penalty cases. It has, in the last four years, significantly changed the way the high court does business.

Increasingly, the court relies on the shadow docket to make decisions in a wide range of consequential cases, often in a dramatically accelerated fashion and without providing signed opinions or detailed explanations. Sometimes, as in death penalty cases, the decisions are irreversible.

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The public generally sees the court as sorting out matters of national importance through extensive briefing, oral arguments and lengthy rulings that explain the law. But the number of substantive shadow docket decisions rose dramatically during the Trump administration. In those four years, the government filed shadow docket applications at 20 times the rate of each of the two previous eight-year administrations. The high court granted the government’s requests in a majority of cases.