Mariposa County Sheriff | Mark43 dispatch and records system
The Sheriff launched a cloud-based Mark43 computer-aided dispatch and records system after the Board approved an agreement that reached $1,125,154.53. The executed agreement and its data terms are not among the public records reviewed.
At a glance
How it happened
- Decision
The Board approves the Mark43 agreement
The Board unanimously approves $1,094,332 for a records management and computer-aided dispatch system. Sheriff staff describes migration from the legacy system to a cloud-native platform. One commenter asks about training, and staff says training is included. [1]
- Procurement
An amendment raises the agreement total
The Board approves a first amendment adding $30,822.53 and increasing the not-to-exceed amount to $1,125,154.53. The item remains on the consent calendar. [3]
- Deployment
The Sheriff's annual report says the system launched
The annual report says Mark43 replaced the prior dispatch and records tools. It describes mobile access to records and call history, integrated mapping, location data, and unit tracking. [4]
How it was approved
On February 20, 2024, the Board of Supervisors unanimously approved a $1,094,332 agreement with Mark43 for a public safety records management system and computer-aided dispatch system. Sheriff staff told the Board that information from the prior system would be migrated to a cloud-native platform. One commenter asked about training. The Undersheriff said training would be included in the scope of work.[1]
The Board approved a first amendment on October 15, 2024. It added $30,822.53 and raised the agreement’s not-to-exceed amount to $1,125,154.53. The amendment was part of the consent calendar, the group of items approved in one vote, and no item was removed.[3]
How it was paid for
The county’s fiscal year 2024-25 recommended budget says $600,000 in American Rescue Plan Act funds supported the multi-year agreement. The funding contribution is smaller than the approved agreement total.[2][1][3]
When it started operating
The Sheriff’s fiscal year 2025 annual report says the office launched Mark43 and replaced its legacy dispatch and records tools. It describes integrated dispatch and records workflows. It also describes mobile access to records and call history, mapping, location data, alerts, and unit tracking.[4]
The report says staff across dispatch, patrol, and records received training during deployment. It does not give a day-precise launch date.[4]
What governs it
The Board minutes establish the approval and price. The budget identifies a funding source. The annual report describes the deployed capabilities. Those records do not state the contract term, licensed modules, retention schedule, access roles, interagency sharing permissions, audit controls, security terms, or exit and data-export provisions.[1][2][3][4]
The fully executed agreement and amendment are the next records needed to determine how the county and vendor govern stored records and location data.
Questions
- What is Mark43 used for in Mariposa County?
- The Sheriff's Office uses it for computer-aided dispatch and records management. Its annual report describes call assignment, mobile records and call history, mapping, location data, alerts, and unit tracking. [1] [4]
- How much did Mariposa County approve for Mark43?
- The Board approved $1,094,332 in February 2024 and added $30,822.53 in October 2024, for a revised amount not to exceed $1,125,154.53. [1] [3]
What we do not know
- What do the executed agreement and amendment say about term, licensed products, retention, audit, security, data sharing, analytics, and termination?
- Why did the amendment add $30,822.53?
- Which agencies and county departments can access or exchange records through the system?
- Which optional analytics, automated recommendation, or artificial intelligence features are licensed or enabled?
What you can do
Show up
Systems like this one are approved by boards, councils and committees that meet in public. We have not yet confirmed where each of them meets in Mariposa County.
What we have documented in Mariposa County →Protect yourself
Practical steps to shrink your personal data trail. Our guides publish at launch; until then, EFF's Surveillance Self-Defense is the best starting point.
Surveillance Self-Defense →Sources
- 1. Mariposa County Board of Supervisors minutes, February 20, 2024 (Mark43 agreement) · Meeting record · · accessed · archived copy
- 2. Mariposa County fiscal year 2024-25 recommended budget (Sheriff section) · Primary document · accessed · archived copy
- 3. Mariposa County Board of Supervisors minutes, October 15, 2024 (Mark43 amendment) · Meeting record · · accessed · archived copy
- 4. Mariposa County Sheriff's Office fiscal year 2025 annual report · Primary document · accessed · archived copy
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