East Bay / A practical source directory
Looking for what is happening in Danville, why officers are in San Ramon, or a record from another East Bay city? Find the official information that fits the question, then read its dates and limits.
This is a source guide, not a live incident feed. For a current situation, follow the issuing agency’s instructions. Call 911 for immediate danger.
Local records work differently
These guides cover police-related information in ten researched communities in Contra Costa and Alameda counties. This is a selected East Bay directory, not a list of all cities or Lucas service areas.
Weekly PDFs + a local code key
Read the local guideWeekly incident summaries + street search
Read the local guideCrime-map date window + WCAlert
Read the local guideMonthly district-level map
Read the local guideCompleted-call records + jurisdiction check
Read the local guideAnnual data + clear comparison limits
Read the local guideThree portal views, three different tasks
Read the local guideMaps, media bulletins + subscription check
Read the local guideBlock-level records + changing classifications
Read the local guideCalls dashboard + weekly arrests + yearly totals
Read the local guide“What is going on?” can mean an active response, a past event or a pattern over several months. Start by writing the location and time you mean. Then choose a source whose purpose and period fit.
On a narrow screen, the table can be scrolled horizontally.
| What you want to know | Useful starting point | What it cannot establish alone |
|---|---|---|
| Should I take protective action? | Current official warning or agency instruction | A full account of all police work. |
| What was published about a past call? | Local log or activity portal | A final finding or every detail. |
| What do longer-term records show? | Dated crime-statistics table or map | Why police are at a scene now. |
| How do I report something? | Agency’s current reporting instructions | That a marketing contact accepts evidence. |
Read the source’s own terminology. A call, an arrest, an offense and a report are different units. Mixing them creates an apparent total that the publisher may never have reported.
For a participating department’s specific public request, Lucas is designed to keep the source, context and requested action together. Sentinel supports the department’s publishing and review workflow. The local guides below explain how that purpose differs from researching a public log; an agency’s participation must be confirmed separately.
The Community Warning System is an all-hazards warning service for protective information. Its scope includes selected law enforcement emergencies; it is not a notice for every routine call. Follow the message’s area, action and issuing authority.
Read the CWS questions and answers ↗AC Alert provides county mass-notification enrollment for people who live, work or visit there. Start with the county’s instructions and choose the places and contact methods relevant to you. Enrollment in a city information digest is a separate decision.
Find AC Alert through the county ↗A trip from San Ramon to Dublin can change which city and county sources matter. Keep the issuing authority visible instead of treating all alerts as one regional service. This is an information routine, not a promise of message delivery.
The East Bay Regional Park District publishes its own police and fire activity information. Its FAQ says most activity becomes available four hours after completion; crimes appear after a report is approved. The service covers the district’s jurisdiction, rather than all incidents in the surrounding city.
The district also links a Daily Bulletin and daily or weekly email choices. Confidential or sensitive records can be withheld. A missing marker is not proof that nothing happened on a trail or at a park.
Source: Police & Fire Activity ↗
If no official explanation is available, say so. The responsible agency may publish later or may have limits on what it can disclose.
Questions people ask
This guide has not established the cause of a current response. Find the responsible agency, check its dated public announcements and follow any protective instructions. Vehicle counts, helicopters and map markers alone do not establish an explanation.
The sources reviewed here are separate city, county-warning and park-district services. They publish different records on different schedules. This directory does not combine them into a complete or live regional incident feed.
No dispatch audio is provided. We have not verified an official public radio stream for these ten city guides, and have not established their encryption status. Written logs and warnings answer different questions from operational radio traffic.
No. Period limits, reporting and approval delays, jurisdiction, confidentiality and incomplete publication can all limit what a reader sees. Use the local guide’s source notes and avoid turning a missing entry into a safety conclusion.
Lucas + Sentinel
Lucas is designed to help residents follow participating departments and understand their public safety alerts. Sentinel supports the department side: publishing geographically targeted updates and organizing relevant incoming information. A static research guide cannot confirm a local partnership, a live alert channel or tip acceptance.
Detailr Corp reviewed official city, county and Park District sources on October 31, 2026. City guides explain the particular records each source describes. Where direct page access was blocked, we label the use of official indexed text in the guide’s access notes. No current incident, radio stream or delivery speed was independently verified.
Public information changes. Use the original publisher’s current instructions and the date range inside its record. This directory does not republish identifiable arrest entries, accept incident reports or assign neighborhood safety scores.