D.I. Andrews was the police officer who investigated the murder of Calvin Valentine. D.I. Andrews lead a police ambush to arrest Gaz Bennett, who was planning to flee with Lauren Valentine. Andrews later spoke with Malachy Fisher who claimed to have killed Calvin, but Andrews did not believe Malachy. In June 2010, Andrews arrested Zak Ramsey after Meriel Vaughn revealed that Zak had attacked Tariq Mistry.
In July 2010, Carmel Valentine called D.I. Andrews after Anita Roy found a gun in Gaz Bennett's possession. Gaz was initially re-arrested and charged, but was released when the evidence pointed towards Kyle Ryder. Kyle was then arrested and charged, despite (correctly) telling D.I. Andrews that Theresa McQueen killed Calvin.