No. 18-740October Term 2018Decided Jun 10, 2019
Moath Hamza Ahmed al-Alwi, Petitioner v. Donald J. Trump, President of the United States, et al.
The Supreme Court chose not to take al-Alwi's case, so it left the lower-court outcome in place without settling the broader detention questions.
Case status
- Current stage
- Decided
- Latest event
- Decision released Jun 10, 2019
- What it's about
from the United States Court of Appeals for the District of Columbia Circuit.
Question presented
1. Whether the government’s statutory authority to detain Mr. al-Alwi has unraveled. 2. Alternatively, whether the government’s statutory authority to detain Mr. al-Alwi has expired because the conflict in which he was captured has ended. 3. Whether the Authorization for Use of Military Force authorizes, and the Constitution permits, detention of an individual who was not “engaged in an armed conflict against the United States” in Afghanistan prior to his capture.
- Case path
United States Court of Appeals for the District of Columbia Circuit / Decision released Jun 10, 2019
- Area
Decided Supreme Court case
Briefing
What it's about
Moath Hamza Ahmed al-Alwi, a detainee at the United States Naval Base at Guantanamo Bay, Cuba, asked the Supreme Court to review whether the government still had legal authority to keep detaining him. On June 10, 2019, the Court declined review and did not decide those underlying questions on the merits.
Vote
On June 10, 2019, the Supreme Court declined to hear the case; the prompt does not provide a vote count or opinion lineup.
Impact
That left the lower court's result in place for al-Alwi and matters for other Guantanamo detainees making similar arguments about whether wartime detention authority has lasted too long. For example, a detainee arguing that the Afghanistan conflict has effectively ended did not get a new Supreme Court answer here.
What's next
This Supreme Court docket action is over. The practical result is that al-Alwi remained subject to the lower court's ruling unless he pursued other litigation avenues outside this closed petition.
What was al-Alwi asking the Supreme Court to decide?
He asked whether the government still had legal authority to detain him under the Authorization for Use of Military Force and the Constitution. He also argued the relevant conflict had ended.
Who is most affected by the Court's refusal to hear this case?
Al-Alwi was affected directly because the lower court's result stayed in place. Other Guantanamo detainees raising similar detention-duration arguments also did not get a new Supreme Court ruling.
What happens next after the Supreme Court declined review?
This petition is finished at the Supreme Court. The lower court's decision remains in effect, and any further challenge would need a different procedural path.
Decision
What the Court decided
The Supreme Court chose not to take al-Alwi's case, so it left the lower-court outcome in place without settling the broader detention questions.
Impact
That left the lower court's result in place for al-Alwi and matters for other Guantanamo detainees making similar arguments about whether wartime detention authority has lasted too long. For example, a detainee arguing that the Afghanistan conflict has effectively ended did not get a new Supreme Court answer here.
Not official Court text.
Opinion documents
Documents
Related cases




Grounding
- Grounding
- Primary materials plus reporting.
- Note
- Best-effort analysis: this explainer relies on a mix of primary materials and trusted secondary sources. Official filings and opinions remain authoritative.
- Checked
- Jun 1, 2026
- Method
- Methodology
Primary materials8
Supreme Court docket 18-740
docket | Jun 1, 2026
Primary case document
Supreme Court document | Jun 1, 2026
CourtListener docket record
docket | Jun 1, 2026
Opinion
opinion | Jun 10, 2019
Petition
brief | Dec 5, 2018
Lower Court Orders/Opinions
order | Oct 15, 2018
SupremeCourt.gov
official | Jun 1, 2026
SupremeCourt.gov
official | Jun 1, 2026