In re Douglas, 200 Cal.App.4th 236, 132 Cal.Rptr.3d 582, 588-89 (4th Dist. Oct. 27, 2011) (Moreover, unreasonable delay also bars consideration of a petition for writ of habeas corpus under the doctrine of laches. (People v. Miller, supra, 6 Cal.App.4th at pp. 881-882.) Application of the doctrine is appropriate where the delay is unreasonable and has prejudiced respondent. (Miller v. Eisenhower Medical Center (1980) 27 Cal.3d 614, 624.)).