Richmond police Det. Cliff Calderan, RPD’s gangs expert who is credited with leading an investigation that led to multiple arrests of the Manor Boyz street gang and a subsequent reduction in gun violence in the city, has been named the department’s 2017 Detective of The Year.
Calderan, who began his career at RPD in 2007, was recently honored at the Richmond Elks Lodge No. 1251 after being selected by his peers, according to police.
After spending several years on the streets learning the beats, Calderan became an investigator with the Special Investigations Section (SIS) in 2014 with a focus on gangs.
His investigations into the Manor Boyz, which began amid a series of violent acts by the gang in 2016, drew praise and media attention, including a high-profile press conference in July last year announcing six arrests and 11 firearms seized following a joint crackdown by both RPD and the FBI.
Calderan’s investigation launched in July and September 2016, after a shooting incident and firearm arrests. During that same month, Chrisean Nealy and Jovante Prothro were murdered, police said. Dawaun Rice, an associate of the gang, was implicated in both murders, taken into custody and later indicted for them.
Then in January 2017, Calderan learned that the gang was also involved in several home-invasion robberies in the cities of Oakland and San Jose. The Contra Costa County FBI Safe Street Task Force (SSTF) was summoned to assist in the investigation.
As the investigation was ongoing, the gang’s violent illegal activities continued, with members connected to a shooting in March 2017. In May 2017, more members were found in possession of firearms.
That same month, a victim was shot by a member of the gang during a home-invasion robbery, and Allie Sweitzer, 20, of Discovery Bay, was murdered by a 15-year-old member of the gang.
“At the conclusion of the complex investigation that touched a spectrum of crimes, numerous gang members were arrested and charged, weapons were seized, and the amount of gun violence has since reduced,” according to RPD.
Calderan was also awarded a certificate of achievement and appreciation from the office of County Supervisor John Gioia.