---
type: "Bill"
title: "Evidentiary Rules When Interference With Witness"
description: "Pursuant to an opinion of the Colorado supreme court, if a party to a criminal case wrongfully procures the unavailability of a witness, that witness's hearsay evidence may be inadmissible. The act provides that such evidence may be admissible as an exception to the hearsay rule if:"
jurisdiction: "us/states/co"
legislature: "Colorado General Assembly"
session: "2020A"
identifier: "SB 20-088"
citation: "Colorado SB 20-088 (2020A)"
classification: ["bill"]
subjects: []
status: "enacted"
primary_sponsors: ["Dylan Roberts", "Matt Soper", "Rhonda Fields"]
version_count: 9
action_count: 18
vote_count: 4
first_action: "2020-01-13T07:00:00+00:00"
last_action: "2020-06-26T06:00:00+00:00"
source: "openstates"
source_identifier: "ocd-bill/a68852bc-d761-42c4-88ff-8cdc431f4a26"
source_url: "http://leg.colorado.gov/bills/sb20-088"
source_hash: "65dd536e55b6e43891a0220397fea86e32e0dd6242365735bcc0beb199d91a84"
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-co"]
---

# Colorado SB 20-088 (2020A) — Evidentiary Rules When Interference With Witness

Pursuant to an opinion of the Colorado supreme court, if a party to a criminal case wrongfully procures the unavailability of a witness, that witness's hearsay evidence may be inadmissible. The act provides that such evidence may be admissible as an exception to the hearsay rule if:

## Version chain

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

1. **Committee Amendment** (committee substitute) — [source](http://leg.colorado.gov/sites/default/files/2020a_sb088_h_jud_001.pdf)
2. **Engrossed (02/12/2020)** (committee substitute) — [source](http://leg.colorado.gov/sites/default/files/documents/2020A/bills/2020a_088_eng.pdf)
3. **Final Act (06/19/2020)** (committee substitute) — [source](http://leg.colorado.gov/sites/default/files/documents/2020A/bills/2020a_088_enr.pdf)
4. **Introduced (01/13/2020)** (committee substitute) — [source](http://leg.colorado.gov/sites/default/files/documents/2020A/bills/2020a_088_01.pdf)
5. **PA1 (03/11/2020)** (committee substitute) — [source](http://leg.colorado.gov/sites/default/files/documents/2020A/bills/2020a_088jud_01.pdf)
6. **Reengrossed (02/13/2020)** (committee substitute) — [source](http://leg.colorado.gov/sites/default/files/documents/2020A/bills/2020a_088_ren.pdf)
7. **Rerevised (06/08/2020)** (committee substitute) — [source](http://leg.colorado.gov/sites/default/files/documents/2020A/bills/2020a_088_rer.pdf)
8. **Revised (06/04/2020)** (committee substitute) — [source](http://leg.colorado.gov/sites/default/files/documents/2020A/bills/2020a_088_rev.pdf)
9. **Signed Act (06/26/2020)** (committee substitute) — [source](http://leg.colorado.gov/sites/default/files/2020a_088_signed.pdf)

## Votes

- CONCUR — **33–0** (pass) · upper
- BILL — **63–1** (pass) · lower
- BILL — **32–0** (pass) · upper
- REPASS — **33–0** (pass) · upper

## Sponsors

- Dylan Roberts — primary (person)
- Matt Soper — primary (person)
- Rhonda Fields — primary (person)

## Timeline

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

- **2020-06-26T06:00:00+00:00** Governor Signed `executive-signature`
- **2020-06-19T06:00:00+00:00** Sent to the Governor `executive-receipt`
- **2020-06-19T06:00:00+00:00** Signed by the Speaker of the House
- **2020-06-15T06:00:00+00:00** Signed by the President of the Senate
- **2020-06-09T06:00:00+00:00** Senate Considered House Amendments - Result was to Concur - Repass
- **2020-06-08T06:00:00+00:00** House Third Reading Passed - No Amendments `reading-3, passage`
- **2020-06-05T06:00:00+00:00** House Third Reading Laid Over Daily - No Amendments
- **2020-06-04T06:00:00+00:00** House Second Reading Special Order - Passed with Amendments - Committee, Floor
- **2020-06-01T06:00:00+00:00** House Second Reading Laid Over Daily - No Amendments
- **2020-05-28T06:00:00+00:00** House Second Reading Laid Over to 06/01/2020 - No Amendments
- **2020-03-14T06:00:00+00:00** House Second Reading Laid Over to 03/30/2020 - No Amendments
- **2020-03-13T06:00:00+00:00** House Second Reading Laid Over Daily - No Amendments
- **2020-03-10T06:00:00+00:00** House Committee on Judiciary Refer Amended to House Committee of the Whole `committee-passage, referral-committee`
- **2020-02-14T07:00:00+00:00** Introduced In House - Assigned to Judiciary `introduction`
- **2020-02-13T07:00:00+00:00** Senate Third Reading Passed - No Amendments `reading-3, passage`
- **2020-02-12T07:00:00+00:00** Senate Second Reading Special Order - Passed - No Amendments
- **2020-02-10T07:00:00+00:00** Senate Committee on Judiciary Refer Unamended - Consent Calendar to Senate Committee of the Whole `committee-passage`
- **2020-01-13T07:00:00+00:00** Introduced In Senate - Assigned to Judiciary `introduction`

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/a68852bc-d761-42c4-88ff-8cdc431f4a26`. Confidence: reported (aggregated from official Colorado legislature records).