discussed Cited "see, e.g." State v. Barney Although Utah courts have not directly defined what constitutes a detainer, multiple courts, including the United States Supreme Court, have stated that "[al detainer is a request filed by a criminal justice ageney with the institution in which a prisoner is incarcerated, asking the institution to either hold the prisoner for the ageney or to notify the agency when release of the prisoner is imminent." Carchman v. Nash, 473 U.S. 716, 719 , 105 S.Ct. 8401 , 87 LEdA2d 516 (1985); see also, eg., Fex v. Michigan, 507 U.S. 48 , 44, 118 S.Ct. 1085 , 122 L.Ed.2d 406 (1993); Tucker v. United States, 5…