877 A.2d 219 THE STATE OF NEW HAMPSHIRE v. ROBERT B. COWLES. No. 2004-160.Supreme Court of New Hampshire Grafton.Argued: April 20, 2005. Opinion Issued: June 21, 2005. 1. Criminal Law — Confessions — Tests and Standards The following four factors are considered in determining whether a confession has been tainted by a prior unlawful arrest: […]