Analysis by the Legislative Reference Bureau
This bill makes various changes in current law governing discovery in criminal
cases. The provisions of current law and the changes made by this bill are as follows:
Current law
1. Under current law, a prosecutor in a criminal case must, at the request of
the defendant in the case, disclose to the defendant certain information concerning
the case, or allow the defendant to inspect and copy or photograph certain
information and items relating to the case, if the information or item is in the
possession, custody or control of the state. Specifically, under current law the
prosecutor must disclose or provide access to the following information or items:
a) Any written or recorded statement concerning the alleged crime made by the
defendant.
b) A written summary of all oral statements of the defendant which the
prosecutor plans to use during the trial.
c) The names of witnesses to the written and oral statements which the
prosecutor plans to use during the trial.

d) A copy of the defendant's criminal record and the criminal record of a
prosecution witness that is known to the prosecutor.
e) Evidence obtained from a one-party consent recording that the prosecutor
intends to use at trial.
Also, under case law interpreting constitutional provisions relating to criminal
cases, a prosecutor must also disclose evidence in his or her possession that is
favorable to the defendant.
2. Under current law, both the prosecutor and the defendant or defense
attorney must make reciprocal disclosures of information or allow reciprocal access
to certain information or items as follows:
a) Before a witness other than the defendant testifies at trial, a party must
provide to the other party any written or phonographically recorded statements of
the witness.
b) On the motion of a party, all parties must produce, at a reasonable time and
place designated by the court, all physical evidence which each party intends to
introduce in evidence at the trial.
c) On the motion of a party, a court may order that any item of physical evidence
a party intends to introduce at the trial be produced for scientific analysis. The court
may also order the production of reports or results of any scientific tests or
experiments made by any party relating to evidence intended to be introduced at the
trial.
3. Under current law, if a defendant offers to provide the prosecutor with a list
of witnesses whom he or she intends to call at trial, the prosecutor must provide to
the defendant a list of witnesses whom the prosecutor intends to call at trial. After
receiving the prosecutor's witness list, the defendant must provide his or her witness
list to the prosecutor.
4. Under current law, if a defendant intends to rely on an alibi as a defense, he
or she must provide the prosecutor with a notice of alibi at least 15 days before trial.
The notice of alibi must specify where the defendant claims to have been at the time
the crime was committed and list the witnesses, if known, to the defendant's alibi.
Within 10 days of receiving a notice of alibi, the prosecutor must provide the
defendant with a list of witnesses whom the prosecutor intends to offer in rebuttal
to discredit the defendant's alibi.
5. Under current law, a defense attorney must, at the request of the prosecutor,
disclose to the prosecutor the criminal record of a defense witness, other than the
defendant, that is known to the defense attorney.
6. Finally, under current law, if, after complying with a requirement concerning
disclosure and discovery, a party discovers additional material or the names of
additional witnesses that are subject to discovery, inspection or production, the party
must promptly notify the other party of the existence of the additional material or
names.
Changes made by this bill
This bill expands the discovery and disclosure requirements that apply to both
the prosecutor and the defendant by doing all of the following:

1. The bill eliminates the procedure under current law concerning the exchange
of witness lists (described in item 3, above) and instead requires both the prosecutor
and the defendant or defense attorney to provide, at the request of the other party,
a list of witnesses whom he or she intends to call at trial, with the exception that the
defendant is not required to list himself or herself on the witness list provided to the
prosecutor.
2. The bill changes current law concerning notice of alibi (described in item 4,
above) by requiring the defendant to provide a notice of alibi at least 30 days before
trial and by requiring the prosecutor to provide a list of alibi rebuttal witnesses
within 15 days of receiving the defendant's alibi notice. The bill also provides that
any witness who will testify about the alibi must be disclosed as part of the notice of
alibi procedure even if that witness must also be disclosed on the witness lists that
the parties must exchange under the bill.
3. The bill eliminates the provisions of current law that require a motion by a
party to produce physical evidence for inspection. Instead, the bill requires the
following: a) the prosecutor must, at the request of the defendant or defense counsel,
disclose and make available for inspection all relevant physical evidence seized or
obtained as a part of the investigation of the offense charged; and b) the defendant
or defense counsel must, at the request of the prosecutor, disclose and make available
for inspection any physical evidence that the defendant intends to offer in evidence
at the trial. The bill does not change current law provisions concerning the
production of physical evidence for scientific testing.
4. The bill eliminates the provision of current law that requires a court to order
production of reports or results of any scientific test or experiments relating to
evidence intended to be introduced at trial. Instead, the bill requires both a
prosecutor and a defendant or defense counsel to disclose, at the request of the other
party, and make available for inspection any relevant written or recorded statements
of a witness who is on a witness list required under the bill, including any reports
or statements of an expert witness made concerning the case and the results of any
physical or mental examination, scientific test, experiment or comparison that the
party calling the witness intends to offer in evidence at trial.
5. The bill codifies the requirement established in case law that a prosecutor
must disclose and allow inspection and copying of any evidence that is favorable to
the defendant.
6. The bill permits a judge to advise a jury that a prosecutor or defendant or
defense attorney failed or refused to disclose, or disclosed in an untimely manner,
any information required to be disclosed under the bill.
For further information see the state fiscal estimate, which will be printed as
an appendix to this bill.
The people of the state of Wisconsin, represented in senate and assembly, do
enact as follows:
AB721, s. 1 1Section 1. 48.293 (2) of the statutes is amended to read:
AB721,4,11
148.293 (2) All records relating to a child which are relevant to the subject
2matter of a proceeding under this chapter shall be open to inspection by a guardian
3ad litem or counsel for any party, upon demand and upon presentation of releases
4where necessary, at least 48 hours before the proceeding. Persons entitled to inspect
5the records may obtain copies of the records with the permission of the custodian of
6the records or with permission of the court. The court may instruct counsel not to
7disclose specified items in the materials to the child or the parent if the court
8reasonably believes that the disclosure would be harmful to the interests of the child.
9Sections 971.23 to 971.25 and 972.11 (5) shall be applicable in all delinquency
10proceedings under this chapter except the court shall establish the timetable for the
11disclosures required under
ss. 971.23 (3), (1), (2m) and (8) and (9) and 972.11 (5).
AB721, s. 2 12Section 2. 165.79 (1) of the statutes is amended to read:
AB721,5,413 165.79 (1) Evidence, information and analyses of evidence obtained from law
14enforcement officers by the laboratories is privileged and not available to persons
15other than law enforcement officers nor is the defendant entitled to an inspection of
16information and evidence submitted to the laboratories by the state or of a
17laboratory's findings, or to examine laboratory personnel as witnesses concerning
18the same, prior to trial, except to the extent that the same is used by the state at a
19preliminary hearing and except as provided in s. 971.23. Upon request of a defendant
20in a felony action, approved by the presiding judge, the laboratories shall conduct
21analyses of evidence on behalf of the defendant. No prosecuting officer is entitled to
22an inspection of information and evidence submitted to the laboratories by the
23defendant, or of a laboratory's findings, or to examine laboratory personnel as
24witnesses concerning the same, prior to trial, except to the extent that the same is
25used by the accused at a preliminary hearing and except as provided in s. 971.23.

1Employes who made examinations or analyses of evidence shall attend the criminal
2trial as witnesses, without subpoena, upon reasonable written notice from either
3party requesting the attendance. Nothing in this section limits the right of a court
4to order the production of evidence or reports under s. 971.23 prior to trial.
AB721, s. 3 5Section 3. 304.06 (3d) of the statutes is created to read:
AB721,5,146 304.06 (3d) Upon demand prior to a revocation hearing under sub. (3), the
7district attorney shall disclose to a defendant the existence of any videotaped oral
8statement of a child under s. 908.08 which is within the possession, custody or control
9of the state and shall make reasonable arrangements for the defendant and defense
10counsel to view the videotaped statement. If, subsequent to compliance with this
11subsection, the state obtains possession, custody or control of such a videotaped
12statement, the district attorney shall promptly notify the defendant of that fact and
13make reasonable arrangements for the defendant and defense counsel to view the
14videotaped statement.
AB721, s. 4 15Section 4. 908.08 (6) of the statutes is amended to read:
AB721,5,1816 908.08 (6) Videotaped oral statements of children under this section in the
17possession, custody or control of the state are discoverable under ss. 48.293 (3) and
18971.24 (3)
, 304.06 (3d), 971.23 (1) (e) and 973.10 (2g).
AB721, s. 5 19Section 5. 967.08 (3) (c) of the statutes is amended to read:
AB721,5,2120 967.08 (3) (c) Motions for inspection or testing of physical evidence under s.
21971.23 (4) or (5) or for protective orders under s. 971.23 (6).
AB721, s. 6 22Section 6. 971.23 (1) (title) of the statutes is repealed and recreated to read:
AB721,5,2323 971.23 (1) (title) What a district attorney must disclose to a defendant.
AB721, s. 7 24Section 7. 971.23 (1) of the statutes is renumbered 971.23 (1) (intro.) and
25amended to read:
AB721,6,5
1971.23 (1) (intro.) Upon demand, the district attorney shall disclose to the
2defendant or his or her attorney and shall
permit the defendant within a reasonable
3time before trial
or his or her attorney to inspect and copy or photograph any all of
4the following materials and information, if it is within the possession, custody or
5control of the state:
AB721,6,10 6(a) Any written or recorded statement concerning the alleged crime made by
7the defendant which is within the possession, custody or control of the state,
8including the testimony of the defendant in an s. 968.26 a secret proceeding under
9s. 968.26
or before a grand jury. Upon demand, the district attorney shall furnish the
10defendant with a
, and the names of witnesses to the defendant's written statements.
AB721,6,14 11(b) A written summary of all oral statements of the defendant which the district
12attorney plans to use in the course of the trial. The and the names of witnesses to
13the written and defendant's oral statements which the state plans to use in the course
14of the trial shall also be furnished
.
AB721, s. 8 15Section 8. 971.23 (1) (g) and (h) of the statutes are created to read:
AB721,6,1716 971.23 (1) (g) All relevant physical evidence seized or obtained as a part of the
17investigation of the offenses charged.
AB721,6,1818 (h) Any exculpatory evidence.
AB721, s. 9 19Section 9. 971.23 (2) (title) of the statutes is repealed.
AB721, s. 10 20Section 10. 971.23 (2) of the statutes is renumbered 971.23 (1) (c) and
21amended to read:
AB721,6,2422 971.23 (1) (c) Upon demand prior to trial, the district attorney shall furnish the
23defendant a
A copy of the defendant's criminal record which is within the possession,
24custody or control of the state
.
AB721, s. 11 25Section 11. 971.23 (2m) of the statutes is created to read:
AB721,7,5
1971.23 (2m) What a defendant must disclose to the district attorney. Upon
2demand, the defendant or his or her attorney shall disclose to the district attorney
3and shall permit the district attorney to inspect and copy or photograph all of the
4following materials and information, if it is within the possession, custody or control
5of the defendant:
AB721,7,136 (a) A list of all witnesses, other than the defendant, whom the defendant
7intends to call at trial, together with their addresses and any relevant written or
8recorded statements of those persons, or reports of the statements of those persons,
9including any reports or statements of experts made in connection with the case and
10including the results of any physical or mental examination, scientific test,
11experiment or comparison that the defendant intends to offer in evidence at trial.
12This paragraph does not apply to rebuttal witnesses or those called for impeachment
13only or to reports subject to disclosure under s. 972.11 (5).
AB721,7,1514 (c) Any physical evidence that the defendant intends to offer in evidence at the
15trial.
AB721, s. 12 16Section 12. 971.23 (3) (title) of the statutes is repealed and recreated to read:
AB721,7,1817 971.23 (3) (title) Comment or instruction on failure to disclose information
18or call witness.
AB721, s. 13 19Section 13. 971.23 (3) (a) of the statutes is renumbered 971.23 (1) (d) and
20amended to read:
AB721,8,421 971.23 (1) (d) A defendant may, not less than 15 days nor more than 30 days
22before trial, serve upon the district attorney an offer in writing to furnish the state
23a list of all witnesses the defendant intends to call at the trial, whereupon within 5
24days after the receipt of such offer, the district attorney shall furnish the defendant
25a
list of all witnesses and their addresses whom the district attorney intends to call

1at the trial. Within 5 days after the district attorney furnishes such list, the
2defendant shall furnish the district attorney a list of all witnesses and their
3addresses whom the defendant intends to call at the trial.
This section shall
4paragraph does not apply to rebuttal witnesses or those called for impeachment only.
AB721, s. 14 5Section 14. 971.23 (3) (am) of the statutes is created to read:
AB721,8,96 971.23 (3) (am) A court may advise the jury of any failure or refusal to disclose
7material or information required to be disclosed under sub. (1) or (2m), or of any
8untimely disclosure of material or information required to be disclosed under sub.
9(1) or (2m).
AB721, s. 15 10Section 15. 971.23 (4) of the statutes is repealed.
AB721, s. 16 11Section 16. 971.23 (5) of the statutes is amended to read:
AB721,8,1712 971.23 (5) Scientific testing. On motion of a party subject to s. 971.31 (5), the
13court may order the production of any item of physical evidence which is intended
14to be introduced at the trial for scientific analysis under such terms and conditions
15as the court prescribes. Except as provided in s. 972.11 (5), the court may also order
16the production of reports or results of any scientific tests or experiments made by any
17party relating to evidence intended to be introduced at the trial.
AB721, s. 17 18Section 17. 971.23 (6) of the statutes is amended to read:
AB721,9,219 971.23 (6) Protective order. Upon motion of a party, the court may at any time
20order that discovery, inspection or the listing of witnesses required under this section
21be denied, restricted or deferred, or make other appropriate orders. If the district
22attorney or defense counsel certifies that to list a witness may subject the witness
23or others to physical or economic harm or coercion, the court may order that the
24deposition of the witness be taken pursuant to s. 967.04 (2) to (6). The name of the
25witness need not be divulged prior to the taking of such deposition. If the witness

1becomes unavailable or changes his or her testimony, the deposition shall be
2admissible at trial as substantive evidence.
AB721, s. 18 3Section 18. 971.23 (6m) (title) of the statutes is created to read:
AB721,9,44 971.23 (6m) (title) In camera proceedings.
AB721, s. 19 5Section 19. 971.23 (7) of the statutes is amended to read:
AB721,9,146 971.23 (7) Continuing duty to disclose; failure to comply. If, subsequent to
7compliance with a requirement of this section, and prior to or during trial, a party
8discovers additional material or the names of additional witnesses requested which
9are subject to discovery, inspection or production hereunder under this section, the
10party shall promptly notify the other party of the existence of the additional material
11or names. The court shall exclude any witness not listed or evidence not presented
12for inspection or copying required by this section, unless good cause is shown for
13failure to comply. The court may in appropriate cases grant the opposing party a
14recess or a continuance.
AB721, s. 20 15Section 20. 971.23 (8) (a) of the statutes is amended to read:
AB721,9,2516 971.23 (8) (a) If the defendant intends to rely upon an alibi as a defense, the
17defendant shall give notice to the district attorney at the arraignment or at least 15
1830 days before trial stating particularly the place where the defendant claims to have
19been when the crime is alleged to have been committed together with the names and
20addresses of witnesses to the alibi, if known. If at the close of the state's case the
21defendant withdraws the alibi or if at the close of the defendant's case the defendant
22does not call some or any of the alibi witnesses, the state shall not comment on the
23defendant's withdrawal or on the failure to call some or any of the alibi witnesses.
24The state shall not call any alibi witnesses not called by the defendant for the purpose
25of impeaching the defendant's credibility with regard to the alibi notice. Nothing in

1this section may prohibit the state from calling said alibi witnesses for any other
2purpose.
AB721, s. 21 3Section 21. 971.23 (8) (d) of the statutes is amended to read:
AB721,10,94 971.23 (8) (d) Within 10 15 days after receipt of the notice of alibi, or such other
5time as the court orders, the district attorney shall furnish the defendant notice in
6writing of the names and addresses, if known, of any witnesses whom the state
7proposes to offer in rebuttal to discredit the defendant's alibi. In default of such
8notice, no rebuttal evidence on the alibi issue shall be received unless the court, for
9cause, orders otherwise.
AB721, s. 22 10Section 22. 971.23 (8) (e) of the statutes is created to read:
AB721,10,1411 971.23 (8) (e) A witness list required under par. (a) or (d) shall be provided in
12addition to a witness list required under sub. (1) (d) or (2m) (a), and a witness
13disclosed on a list under sub. (1) (d) or (2m) (a) shall be included on a list under par.
14(a) or (d) if the witness is required to be disclosed under par. (a) or (d).
AB721, s. 23 15Section 23. 971.23 (9) (title) of the statutes is repealed.
AB721, s. 24 16Section 24. 971.23 (9) of the statutes is renumbered 971.23 (1) (bm) and
17amended to read:
AB721,10,2218 971.23 (1) (bm) Notwithstanding sub. (1), if the district attorney intends to use
19evidence
Evidence obtained in the manner described under s. 968.31 (2) (b), if the
20district attorney shall notify the defendant of that intention not less than 30 days
21before trial. The district attorney shall permit the defendant to inspect, listen to or
22copy the evidence upon demand
intends to use the evidence at trial.
AB721, s. 25 23Section 25. 971.24 (title) and (1) of the statutes are repealed.
AB721, s. 26 24Section 26. 971.24 (2) of the statutes is renumbered 971.23 (6m) and amended
25to read:
AB721,11,5
1971.23 (6m) Either party may move for an in camera inspection by the court
2of the documents referred to in sub. (1) any document required to be disclosed under
3sub. (1) or (2m)
for the purpose of masking or deleting any material which is not
4relevant to the case being tried. The court shall mask or delete any irrelevant
5material.
AB721, s. 27 6Section 27. 971.24 (3) of the statutes is renumbered 971.23 (1) (e) and
7amended to read:
AB721,11,228 971.23 (1) (e) Upon demand prior to trial or revocation hearing under s. 304.06
9(3) or 973.10 (2), the district attorney shall disclose to a defendant the existence of
10Any relevant written or recorded statements of a witness named on a list under par.
11(d) or reports of the statements of those witnesses, including any reports or
12statements of experts made in connection with the case, the results of any physical
13or mental examination, scientific test, experiment or comparison that the district
14attorney intends to offer in evidence at the trial and
any videotaped oral statement
15of a child under s. 908.08 which is within the possession, custody or control of the
16state and shall make reasonable arrangements for the defendant and defense
17counsel to view the videotaped statement. If, subsequent to compliance with this
18subsection, the state obtains possession, custody or control of such a videotaped
19statement, the district attorney shall promptly notify the defendant of that fact and
20make reasonable arrangements for the defendant and defense counsel to view the
21videotaped statement
. This paragraph does not apply to reports subject to disclosure
22under s. 972.11 (5)
.
AB721, s. 28 23Section 28. 971.25 (title) of the statutes is repealed.
AB721, s. 29 24Section 29. 971.25 (1) of the statutes is renumbered 971.23 (1) (f) and amended
25to read:
AB721,12,3
1971.23 (1) (f) The district attorney shall disclose to the defendant, upon
2demand, the
criminal record of a prosecution witness which is known to the district
3attorney.
AB721, s. 30 4Section 30. 971.25 (2) of the statutes is renumbered 971.23 (2m) (b) and
5amended to read:
AB721,12,86 971.23 (2m) (b) The defense attorney shall disclose to the district attorney, upon
7demand, the
criminal record of a defense witness, other than the defendant, which
8is known to the defense attorney.
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