District Attorney Main Office

 
Directions

900 Ward St
Martinez, CA 94553

925-957-2200

925-957-2240

Link: District Attorney Office

Media Requests
Phone: 925-957-8638
Contact by Email


Central / Eastern Operations 
Directions

10 Douglas Drive
Suite 130
Martinez, CA 94553

925-957-8540

925-646-2524


Hours
Monday through Friday
8 a.m. to 5 p.m.


Western Operations 
Directions

100 37th Street
Room 220
Richmond, CA 94805

510-231-1800





Auto Insurance Fraud Unit 

900 Ward Street
Fourth Floor
Martinez, CA 94553

925-957-2200

925-646-4683


Hours
Monday through Friday
8 a.m. to 5 p.m.


Bad Check Diversion Restitution Program 

P.O. Box 3130
Martinez, CA 94553

866-639-8093


Hours
Monday through Friday
8 a.m. to 5 p.m.


Bureau of Investigations 
Directions

900 Ward Street
Fourth Floor
Martinez, CA 94553

925-957-2200

925-646-4683


Hours
Monday through Friday
8 a.m. to 5 p.m.


Cold Case-Unsolved Homicide Unit 
Directions

900 Ward Street
Martinez, CA 94553

925-957-2200

925-646-2565



Community Violence Reduction & Gang Unit 
Directions

900 Ward Street
Martinez, CA 94553

925-957-2200

925-646-2565



Consumer Protection (Civil) Unit 
Directions

900 Ward Street
Martinez, CA 94553

925-957-8650

925-646-4683


Hours
Monday through Friday
8 a.m. to 5 p.m.


Criminal Grand Jury 
Directions

900 Ward Street
Martinez, CA 94553

925-957-2200

925-957-2240


Hours
Monday through Friday
8 a.m. to 5 p.m.


Domestic Violence Unit 
Directions

900 Ward Street
Martinez, CA 94553

925-957-2200



Elder / Dependent Abuse 
Directions

900 Ward Street
Second Floor
Martinez, CA 94553

925-957-8744

925-646-4445


Hours
Monday through Friday
8 a.m. to 5 p.m.


Environmental Enforcement 
Directions

900 Ward Street
Fourth Floor
Martinez, CA 94553

925-957-8604

925-646-4683



Family Violence Prosecution 
Directions

900 Ward Street
Second Floor
Martinez, CA 94553

925-957-2200

925-646-4445


Hours
Monday through Friday
8 a.m. to 5 p.m.


Felony Trial Team 
Directions

900 Ward Street
Third Floor
Martinez, CA 94553

925-957-2200

925-957-2240


Hours
Monday through Friday
8 a.m. to 5 p.m.


Government Corruption Section 
Directions

900 Ward Street
Fourth Floor
Martinez, CA 94553

925-957-8604

925-646-4683


Hours
Monday through Friday
8 a.m. to 5 p.m.


Juvenile Division 
Directions

900 Ward Street
First Floor
Martinez, CA 94553

925-957-2200

925-646-2565


Hours
Monday through Friday
8 a.m. to 5 p.m.


Law & Motion Unit 
Directions

900 Ward Street
Martinez, CA 94553

925-957-2200

925-957-2240





Mental Health Litigation Unit 
Directions

900 Ward Street
Martinez, CA 94553

925-957-2200

925-646-4445


Hours
Monday through Friday
8 a.m. to 5 p.m.


Misdemeanor Trial Team (Central/Eastern) 
Directions

10 Douglas Drive
Suite 130
Martinez, CA 94553

925-957-8540

925-646-2524


Hours
Monday through Friday
8 a.m. to 5 p.m.


Misdemeanor Trial Team (Western) 
Directions

100 37th Street
Room 220
Martinez, CA 94553

510-231-1800


Hours
Monday through Friday
8 a.m. to 5 p.m.


Preliminary Hearing Team (Central / Eastern Area) 
Directions

10 Douglas
Suite 130
Martinez, CA 94553

925-957-8540



Preliminary Hearing Team (Central Area - Martinez) 
Directions

900 Ward Street
Third Street
Martinez, CA 94553

925-957-2200



Preliminary Hearing Team (Western Area) 
Directions

100 37th Street
Room 220
Richmond, CA 94805

510-231-1800



Public Assistance Fraud 

10 Douglas Drive
Suite 200
Martinez, CA 94553

925-646-2335

925-646-2565


Hours
Monday through Friday
8 a.m. to 5 p.m.


Real Estate Fraud Unit 
Directions

900 Ward Street
Fourth Floor
Martinez, CA 94553

925-957-8705

925-646-4683


Hours
Monday through Friday
8 a.m. to 5 p.m.


Sexual Assault Unit 
Directions

900 Ward Street
Second Floor
Martinez, CA 94553

925-957-2200

925-646-4445


Hours
Monday through Friday
8 a.m. to 5 p.m.


Special Operations Division 
Directions

900 Ward Street
Fourth Floor
Martinez, CA 94553

925-957-2200

925-646-4683


Hours
Monday through Friday
8 a.m. to 5 p.m.


Special Prosecutions Unit - Drug 

10 Douglas Drive
Suite 200
Martinez, CA 94553

(925) 646-2333

(925) 646-2565



Special Prosecutions Unit - Juvenile 

10 Douglas Drive
Suite 200
Martinez, CA 94553

(925) 646-2334

(925) 646-2566



Superior Court Operations Division 
Directions

900 Ward Street
Martinez, CA 94553

925-957-2200

925-957-2240


Hours
Monday through Friday
8 a.m. to 5 p.m.


Victim Witness Unit 
Directions

900 Ward Street
Martinez, CA 94553

P.O. Box 670
Martinez, CA 94553

925-957-8650

925-646-2565



Workers' Compensation Fraud Unit 
Directions

900 Ward Street
Fourth Floor
Martinez, CA 94553

925-957-2200

925-646-4683


Hours
Monday through Friday
8 a.m. to 5 p.m.


District Attorney Staff Directory 

Coming Soon


Staff
Name Title Email Phone Additional Phone
Becton, Diana District Attorney    
Butts, Derek Deputy District Attorney    
Cabral, Dan Assistant District Attorney    
Georgiou, Nancy Senior Deputy District Attorney    
Gleason, Colleen Senior Deputy District Attorney    
Grassini, Stacey Senior Deputy District Attorney    
Henderson, Jill Supervising Attorney, Deputy District Attorney    
Jallepalli, Satish Deputy District Attorney    
Lyddan, Angela Deputy District Attorney    
Manoukian, Molly Deputy District Attorney    
McCosker, Kristina Deputy District Attorney    
Mount, James Information Systems Tech 925-957-2246  
Peck, Jason Deputy District Attorney    
Piersig, Rachel Interim Unit Supervisor    
Seymour, Jeremy Supervising Attorney, Deputy District Attorney    
Wagner, Ryan Law & Motion Supervising Attorney    
Walpole, Christopher Acting Assistant District Attorney    
O'Connell , Simon Chief Assistant District Attorney    
Tavenier, Andrea Deputy District Attorney    
Bell, Kevin Deputy District Attorney    
Filkowski, Dana Deputy District Attorney    
Mahoney, Shannon Victim Witness Manager SMahoney@contracostada.org  
Fernandez, Jun Deputy District Attorney    
Bell, Devon Senior Deputy District Attorney    
Alonso, Scott Public Information Officer 925-957-8638  
Koeppel, Gary Deputy District Attorney    
Chiarella, Greg Deputy District Attorney    
Threets, Arnold Chief of Inspectors    
Graves, Paul Deputy District Attorney    
Knox, Mary Deputy District Attorney    
Prosser, Scott Deputy District Attorney