San Mateo County Sheriff's Office
E729388
The San Mateo County Sheriff's Office is the primary law enforcement agency responsible for policing unincorporated areas of San Mateo County, California, operating the county jail, and providing various public safety services.
All labels observed (2)
| Label | Occurrences |
|---|---|
| San Mateo County Sheriff's Office canonical | 2 |
| San Mateo County Sheriff’s Office | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T8356483 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: San Mateo County Sheriff's Office Context triple: [California law enforcement agencies, includesAgency, San Mateo County Sheriff's Office]
-
A.
Santa Clara County Sheriff’s Office
The Santa Clara County Sheriff’s Office is the primary law enforcement agency serving unincorporated areas and contract cities within Santa Clara County, California.
-
B.
Alameda County Sheriff’s Office
The Alameda County Sheriff’s Office is the primary law enforcement agency responsible for policing unincorporated areas, operating county jails, and providing public safety services throughout Alameda County, California.
-
C.
Solano County Sheriff’s Office
The Solano County Sheriff’s Office is the primary county law enforcement agency responsible for policing unincorporated areas and providing related public safety services throughout Solano County, California.
-
D.
San Francisco Sheriff’s Office
The San Francisco Sheriff’s Office is the county law enforcement agency responsible for operating jails, providing court security, and performing civil and custody-related duties within the City and County of San Francisco.
-
E.
Santa Cruz County Sheriff’s Office
The Santa Cruz County Sheriff’s Office is the primary law enforcement agency responsible for public safety, patrol, investigations, and corrections throughout Santa Cruz County, California, including communities such as Boulder Creek.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: San Mateo County Sheriff's Office Target entity description: The San Mateo County Sheriff's Office is the primary law enforcement agency responsible for policing unincorporated areas of San Mateo County, California, operating the county jail, and providing various public safety services.
-
A.
Santa Clara County Sheriff’s Office
The Santa Clara County Sheriff’s Office is the primary law enforcement agency serving unincorporated areas and contract cities within Santa Clara County, California.
-
B.
Alameda County Sheriff’s Office
The Alameda County Sheriff’s Office is the primary law enforcement agency responsible for policing unincorporated areas, operating county jails, and providing public safety services throughout Alameda County, California.
-
C.
Solano County Sheriff’s Office
The Solano County Sheriff’s Office is the primary county law enforcement agency responsible for policing unincorporated areas and providing related public safety services throughout Solano County, California.
-
D.
San Francisco Sheriff’s Office
The San Francisco Sheriff’s Office is the county law enforcement agency responsible for operating jails, providing court security, and performing civil and custody-related duties within the City and County of San Francisco.
-
E.
Santa Cruz County Sheriff’s Office
The Santa Cruz County Sheriff’s Office is the primary law enforcement agency responsible for public safety, patrol, investigations, and corrections throughout Santa Cruz County, California, including communities such as Boulder Creek.
- F. None of above. chosen
Statements (43)
| Predicate | Object |
|---|---|
| instanceOf |
county sheriff's office
ⓘ
law enforcement agency ⓘ |
| cooperatesWith |
California Highway Patrol
ⓘ
municipal police departments in San Mateo County ⓘ neighboring county sheriff's offices ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| county |
San Mateo County
ⓘ
linked to:
San Mateo County, California
|
| electedOfficial | Sheriff of San Mateo County ⓘ |
| employer | San Mateo County Sheriff's Office ⓘ |
| fundedBy | San Mateo County budget ⓘ |
| governingBody | San Mateo County Board of Supervisors ⓘ |
| hasDivision |
administrative services division
ⓘ
corrections division ⓘ investigations division ⓘ patrol division ⓘ special operations or tactical units ⓘ |
| hasTypeOfAgency | local law enforcement agency ⓘ |
| headquartersLocation | Redwood City, California ⓘ |
| jurisdiction |
San Mateo County, California
ⓘ
unincorporated areas of San Mateo County ⓘ |
| ledBy | Sheriff of San Mateo County ⓘ |
| legalAuthority |
California Constitution
ⓘ
linked to:
Constitution of California
California state law ⓘ |
| locatedInTimeZone | Pacific Time Zone ⓘ |
| operates |
Maguire Correctional Facility
ⓘ
Maple Street Correctional Center ⓘ
linked to:
Maguire Correctional Facility
San Mateo County jail system ⓘ |
| partOf |
San Mateo County government
ⓘ
linked to:
San Mateo County, California
|
| providesService |
community outreach and crime prevention programs
ⓘ
custody and inmate housing services ⓘ emergency response services ⓘ law enforcement services ⓘ public safety services ⓘ |
| regionServed | San Francisco Peninsula ⓘ |
| responsibleFor |
civil process service in San Mateo County
ⓘ
contract law enforcement services for certain cities in San Mateo County ⓘ coroner services in San Mateo County ⓘ county jail operations in San Mateo County ⓘ countywide emergency services support ⓘ court security services in San Mateo County ⓘ law enforcement in unincorporated San Mateo County ⓘ search and rescue operations in San Mateo County ⓘ |
| state |
California
ⓘ
linked to:
California, United States
|
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: San Mateo County Sheriff's Office Description of subject: The San Mateo County Sheriff's Office is the primary law enforcement agency responsible for policing unincorporated areas of San Mateo County, California, operating the county jail, and providing various public safety services.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: San Mateo County Sheriff's Office
linked to: San Mateo County Sheriff's Office