The dispositive issue is whether a writ of habeas corpus ad prosequendum 1 constitutes a detainer 2 within thе meaning of the Interstate Agreement on Detainers, MCL 780.601 et seq.; MSA 4.147(1) et seq.
I
The prosecution, by means of writs of habeas *693 corpus ad prosequendum issued by the Recorder’s Court for thе City of Detroit, secured the temporary custody of defendant from authorities at thе federal prison in Milan, Michigan, to proceed against him on charges of murder, аssault with intent to murder, and carrying a concealed weapon. All charges were dismissed with prejudice at the trial court level based upon a perceived violation of Article IV(c) of the Interstate Agreement on Detainers:
"In respect of any proceeding made possible by this Article, trial shall be commenced within onе hundred twenty days of the arrival of the prisoner in the receiving state, but for good cause shown in open court, the prisoner or his counsel being present, the court having jurisdiction of the matter may grant any necessary or reasonable continuanсe.”
II
The prosecution appealed, claiming among other things that the Interstate Agreement on Detainers was inapplicable since a writ of habeas сorpus ad prosequendum is not a detainer within the meaning of the Interstate Agreement on Detainers. Although the Court of Appeals rejected the prosecution’s claim, the panеl nonetheless remanded the case to the trial court for further proceedings because it was unable to determine from the record whether the murder chargеs and a carrying a concealed weapon charge had been brought within 120 days. 3
Ill
The Interstate Agreement on Detainers is a
*694
congressionally sanctioned interstate compact, construction of which presents a federal question.
4
The United States Supreme Court has ruled that the provisions of the agreement apply if a participating jurisdiction which has untried charges against a prisoner lodges a detainer with the jurisdiction where the prisoner is incarcerated and that a writ of habeas corpus
ad prosequendum
is not a detainer within the meaning of the agreement.
United States v Mauro,
We conclude that the writ of habeas corpus ad prosequendum remains available as means for a state to seek temporary custody of an accusеd incarcerated in another jurisdiction. The decision by federal authorities to honor a writ in the absence of a detainer as a matter of comity does not trigger the provisions of the agreement. Since the prosecution in the instant casе obtained temporary custody as a result of the writ and no detainer had been lоdged against the defendant, the time provision for trial in Article IV(c) is inapplicable.
We reverse the judgments of the Court of Appeals and Recorder’s Court for the City of Detroit, reinstate the charges against the defendant, and remand the case to the Recorder’s Court for the City of Detroit for further proceedings consistent *695 with this oрinion. We do not address the issues raised on cross-appeal. Upon remand, thе defendant may raise the issue involving his constitutional and statutory rights to a speedy trial аs well as his claim that the murder charges should be dismissed because the prosecution breached an agreement to grant immunity. The people’s motion to strike is deniеd as moot. We do not retain jurisdiction.
Notes
The common-law writ of habeas corpus
ad prosequendum
is an order by a court directing authorities to producе a prisoner to face criminal charges. See
State v Fender,
— W Va —, —;
A detainer is " 'a notificatiоn filed with the institution in which a prisoner is serving a sentence, advising that he is wanted to face pending criminal charges in another jurisdiction’ ”,
United States v Mauro,
"simply a notice filed with the institution in which a prisoner is serving a sentence, advising that the prisоner is wanted to face pending criminal charges elsewhere, and requesting the custodian to notify the filing jurisdiction prior to releasing the prisoner. Filing a detainer is an infоrmal process that generally can be done by any person who has authority tо take a prisoner into custody. Furthermore, a detainer remains lodged against a prisoner without any action being taken on it.
Ridgeway v United States,
558 F2d 357 (CA 6, 1977),
cert den
Cuyler v Adams,
See
Foran v Metz,
