1996). As a result of Sandin, a prisoner has a liberty interest only if the deprivation of which he complains is atypical and significant and the state has created the interest by statute or regulation. Frazier v. Coughlin, 81 F.3d 313, 317 (2d Cir.1996) (per curiam). The district court determined that Sealey lacked a liberty interest in the period between March 30 and April 6,1990, and plaintiff agrees that he had no liberty interest in avoiding that short period of pre-hearing confinement. Id. Defendants, however, urge that we find Sealey had no liberty interest in his entire period of confinement, which ended on August 29,1990.
Defendants concede that the atypical and significant hardship prong of a Sandin liberty analysis may require fact-finding. Moreover, in a series of decisions issued after the district court’s decision in this matter, we have indicated the desirability of fact-finding before determining whether a prisoner has a liberty interest in remaining free from segregated confinement. See, e.g., Brooks v. DiFasi, 112 F.3d 46, 49 (2d Cir.1997); Miller v. Selsky, 111 F.3d 7, 8-9 (2d Cir.1997); Giakoumelos v. Coughlin, 88 F.3d 56, 62 (2d Cir.1996); Samuels v. Mockry, 77 F.3d 34, 38 (2d Cir.1996).
Sealey had no opportunity to develop a factual record on the liberty interest issue because he had no notice that the district court intended to consider dismissal of his complaint based on the absence of a liberty interest. The magistrate judge raised the Sandin question sua sponte and without notice to the parties. A party has no obligation to respond to grounds that the moving party does not raise in a summary judgment motion. See Bryant v. Rudman, 933 F.Supp. 270, 274-75 n. 2 (S.D.N.Y.1996); see also Edwards v. Honeywell, Inc., 960 F.2d 673, 674 (7th Cir.1992).
Notwithstanding this lack of notice, Sealey did produce some proof that (1) he faced an indefinite term in the SHU limited only by the length of his sentence;1 and (2) he actually served 152 days during which he was deprived of all programing opportunities and privileges that inmates in general population enjoyed. Sealey must be given an opportunity to develop additional facts relevant to the liberty analysis. Cf. Samuels, 77 F.3d at 38 (holding that plaintiff’s placement in a limited privileges program may require fact-finding on the liberty interest issue).
Despite defendants’ concession that fact-finding may be necessary to determine whether Sealey incurred an atypical and significant deprivation, they urge that we find as a matter of law that New York statutes and regulations create no liberty interest. We do not address this question because defendants did not make their argument to the district court. Ordinarily this court will not consider issues raised for the first time on appeal, and we decline to do so in this instance. Greene v. United States, 13 F.3d 577, 586 (2d Cir.1994).
C. Due Process
The district court found that Sealey had no claim against any of the defendants for his segregation after April 6, 1990, because from that date forward Sealey had received all the process he was due. Magistrate Judge Hurd defined the minimal process due as that required by Hewitt — some notice, an opportunity to be heard, and an informal non-adversary review of the evidence — and found that defendants conclusively established that Sealey received all the process to which he was due. See Hewitt, 459 U.S. at 476, 103 S.Ct. at 873-74. We do not agree with this analysis.
Sealey argues he was entitled to more process than Hewitt mandates both because his confinement actually was disciplinary in nature and because of the length of his potential and actual confinement. The district court did not consider this contention. We remand for consideration of whether the defendants acted in bad faith, labeling as administrative a confinement that only could be
1
Prior to Sandin, we assessed an inmate’s entitlement to procedural protections in light of the potential penalty he or she faced. See McCann v. Coughlin, 698 F.2d 112, 121 (2d Cir.1983); McKinnon v. Patterson, 568 F.2d 930, 939 (2d Cir.1977), cert. denied, 434 U.S. 1087, 98 S.Ct. 1282, 55 L.Ed.2d 792 (1978). We have not determined since Sandin was issued whether a potential or actual penalty triggers procedural protections.