What is the test for determining whether a defendant has a prior serious and/or violent conviction?

it as [forfeited], and pass it without consideration. [Citations.]' [Citation.]" (People v. Stanley, supra, 10 Cal.4th 764, 793; People v. Hovarter (2008) 44 Cal.4th 983, 1029.) We consider defendant's contention forfeited.

Further, defendant has failed to make any showing of an abuse of discretion in the denial of his Romero motion. "[I]n ruling whether to strike or vacate a prior serious and/or violent felony conviction allegation or finding under the Three Strikes law, on its own motion, 'in furtherance of justice' pursuant to Penal Code section 1385(a), or in reviewing such a ruling, the court in question must consider whether, in light of the nature and circumstances of his present felonies and prior serious and/or violent felony convictions, and the particulars of his background, character, and prospects, the defendant may be deemed outside the scheme's spirit, in whole or in part, and hence should be treated as though he had not previously been convicted of one or more serious and/or violent felonies." (People v. Williams (1998) 17 Cal.4th 148, 161.)