---
type: "Bill"
title: "Criminal investigations: eyewitness identification."
description: "Existing law generally regulates the collection and admissibility of evidence for purposes of criminal prosecutions."
jurisdiction: "us/states/ca"
legislature: "California Legislature"
session: "20172018"
identifier: "SB 923"
citation: "California SB 923 (20172018)"
classification: ["bill"]
subjects: ["Criminal investigations: eyewitness identification."]
status: "enacted"
primary_sponsors: ["Wiener"]
version_count: 7
action_count: 27
vote_count: 8
first_action: "2018-01-23"
last_action: "2018-09-30"
source: "openstates"
source_identifier: "ocd-bill/13cc3b02-8820-4f90-a687-7a36ea6d35ad"
source_url: "http://leginfo.legislature.ca.gov/faces/billNavClient.xhtml?bill_id=201720180SB923"
source_hash: "d015776a83a83cfe16fed7a83ca9751d2c3f79f9e62de7f0d7300af798f084a7"
vintage: "2026-07-01"
source_snapshot: "https://data.openstates.org/daily/2026-07-01/public.pgdump"
retrieved_at: "2026-07-06"
confidence: "reported"
tags: ["legislation", "bill", "us-ca"]
---

# California SB 923 (20172018) — Criminal investigations: eyewitness identification.

Existing law generally regulates the collection and admissibility of evidence for purposes of criminal prosecutions.

## Version chain

The bill's text revisions, in order — the diff chain from filing to enrollment.

1. **01/23/18 - Introduced** (filed) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201720180SB923&version=20170SB92399INT)
2. **05/25/18 - Amended Senate** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201720180SB923&version=20170SB92398AMD)
3. **08/20/18 - Amended Assembly** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201720180SB923&version=20170SB92397AMD)
4. **08/23/18 - Amended Assembly** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201720180SB923&version=20170SB92396AMD)
5. **09/30/18 - Chaptered** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201720180SB923&version=20170SB92394CHP)
6. **SB923** (committee substitute) — [source](http://leginfo.legislature.ca.gov/faces/billNavClient.xhtml?bill_id=201720180SB923)
7. **09/07/18 - Enrolled** (enrolled) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201720180SB923&version=20170SB92395ENR)

## Votes

- Do pass as amended. — **12–1** (pass) · lower
- Do pass and be re-referred to the Committee on [Appropriations] — **5–1** (pass) · lower
- Do pass, but first be re-referred to the Committee on [Appropriations] — **6–0** (pass) · upper
- 3rd Reading SB923 Wiener et al. — **27–8** (pass) · upper
- Placed on suspense file — **7–0** (pass) · upper
- Unfinished Business SB923 Wiener et al. Concurrence — **21–8** (pass) · upper
- Do pass as amended — **5–1** (pass) · upper
- SB 923 Wiener Senate Third Reading By LEVINE — **50–21** (pass) · lower

## Sponsors

- Wiener — primary (person)
- Levine — principal coauthor (person)

## Timeline

The legislative action history — every referral, reading, and vote.

- **2018-01-23** Introduced. Read first time. To Com. on RLS. for assignment. To print. `introduction, reading-1`
- **2018-01-24** From printer. May be acted upon on or after February 23.
- **2018-02-01** Referred to Com. on PUB. S. `referral-committee`
- **2018-03-06** Set for hearing April 10.
- **2018-04-11** From committee: Do pass and re-refer to Com. on APPR. (Ayes 6. Noes 0. Page 4627.) (April 10). Re-referred to Com. on APPR. `committee-passage-favorable, committee-passage, referral-committee`
- **2018-04-13** Set for hearing April 23.
- **2018-04-23** April 23 hearing: Placed on APPR. suspense file.
- **2018-05-18** Set for hearing May 25.
- **2018-05-25** From committee: Do pass as amended. (Ayes 5. Noes 1. Page 4299.) (May 25). `committee-passage-favorable, committee-passage, amendment-passage`
- **2018-05-25** Read second time and amended. Ordered to second reading. `reading-1, amendment-passage, reading-2`
- **2018-05-29** Read second time. Ordered to third reading. `reading-2, reading-1`
- **2018-05-30** Read third time. Passed. (Ayes 27. Noes 8. Page 4400.) Ordered to the Assembly. `reading-3, passage, reading-1`
- **2018-05-31** In Assembly. Read first time. Held at Desk. `reading-1`
- **2018-06-04** Referred to Com. on PUB. S. `referral-committee`
- **2018-06-12** From committee: Do pass and re-refer to Com. on APPR. (Ayes 5. Noes 1.) (June 12). Re-referred to Com. on APPR. `committee-passage-favorable, committee-passage, referral-committee`
- **2018-06-27** June 27 set for first hearing. Placed on APPR. suspense file.
- **2018-08-16** From committee: Do pass as amended. (Ayes 12. Noes 1.) (August 16). `committee-passage-favorable, committee-passage, amendment-passage`
- **2018-08-20** Read second time and amended. Ordered to second reading. `reading-1, amendment-passage, reading-2`
- **2018-08-21** Read second time. Ordered to third reading. `reading-2, reading-1`
- **2018-08-23** Read third time and amended. `amendment-passage, reading-3, reading-1`
- **2018-08-23** Ordered to third reading.
- **2018-08-31** Read third time. Passed. Ordered to the Senate. `reading-3, passage, reading-1`
- **2018-08-31** In Senate. Concurrence in Assembly amendments pending.
- **2018-08-31** Assembly amendments concurred in. (Ayes 21. Noes 8. Page 6188.) Ordered to engrossing and enrolling. `committee-passage-favorable, amendment-passage`
- **2018-09-12** Enrolled and presented to the Governor at 5 p.m.
- **2018-09-30** Approved by the Governor. `executive-signature`
- **2018-09-30** Chaptered by Secretary of State. Chapter 977, Statutes of 2018.

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/13cc3b02-8820-4f90-a687-7a36ea6d35ad`. Confidence: reported (aggregated from official California legislature records).