Petition for writ of prohibition after denial of Pen. Code 995 motion
15 days after date the trial court denied the 995 motion (lack of reasonable or probable cause), under Cal. Pen. Code 999a.
Rule text
A petition for a writ of prohibition, predicated upon the ground that the indictment was found without reasonable or probable cause or that the defendant had been committed on an information without reasonable or probable cause, or that the court abused its discretion in utilizing the procedure set out in subdivision (b) of Section 995a, must be filed in the appellate court within 15 days after a motion made under Section 995 to set aside the indictment on the ground that the defendant has been indicted without reasonable or probable cause or that the defendant had been committed on an information without reasonable or probable cause, has been denied by the trial court.
Calculate this deadline
- Trigger (Date the trial court denied the 995 motion (lack of reasonable or probable cause)): Friday, November 6, 2026.
- Exclude the trigger day and count 15 calendar days: Saturday, November 21, 2026.
- That day is a Saturday, so the deadline moves to the next court day: Monday, November 23, 2026 (Cal. Code Civ. Proc. 12, 12a, 10; Gov. Code 6800, 6804, 6806; Cal. Rules of Court, rule 1.10 (for periods set by the Rules of Court)).
Cal. Pen. Code 999a
A petition for a writ of prohibition, predicated upon the ground that the indictment was found without reasonable or probable cause or that the defendant had been committed on an information without reasonable or probable cause, or that the court abused its discretion in utilizing the procedure set out in subdivision (b) of Section 995a, must be filed in the appellate court within 15 days after a motion made under Section 995 to set aside the indictment on the ground that the defendant has been indicted without reasonable or probable cause or that the defendant had been committed on an information without reasonable or probable cause, has been denied by the trial court.Official source
Cal. Code Civ. Proc. 12, 12a, 10; Gov. Code 6800, 6804, 6806; Cal. Rules of Court, rule 1.10 (for periods set by the Rules of Court)
CCP 12: "The time in which any act provided by law is to be done is computed by excluding the first day, and including the last, unless the last day is a holiday, and then it is also excluded." CCP 12a: "(a) If the last day for the performance of any act provided or required by law to be performed within a specified period of time is a holiday, then that period is hereby extended to and including the next day that is not a holiday. For purposes of this section, “holiday” means all day on Saturdays, all holidays specified in Section 135 and, to the extent provided in Section 12b, all days that by terms of Section 12b are required to be considered as holidays.(b) This section applies to Sections 659, 659a, and 921, and to all other provisions of law providing or requiring an act to be performed on a particular day or within a specified period of time, whether expressed in this or any other code or statute, ordinance, rule, or regulation." CCP 10: "Holidays within the meaning of this code are every Sunday and any other days that are specified or provided for as judicial holidays in Section 135." Gov. Code 6800: "The time in which any act provided by law is to be done is computed by excluding the first day, and including the last, unless the last day is a holiday, and then it is also excluded." Gov. Code 6804: "“Month” means a calendar month, unless otherwise expressed." Gov. Code 6806: "A day is the period of time between any midnight and the midnight following." CRC 1.10(a): "The time in which any act provided by these rules is to be performed is computed by excluding the first day and including the last, unless the last day is a Saturday, Sunday, or other legal holiday, and then it is also excluded." CRC 1.10(b): "Unless otherwise provided by law, if the last day for the performance of any act that is required by these rules to be performed within a specific period of time falls on a Saturday, Sunday, or other legal holiday, the period is extended to and includes the next day that is not a holiday."Official source
- Filed in the Court of Appeal; copy served on the DA. Runs from denial in the trial court (no notice-of-ruling trigger). Pretrial review also requires the 995 motion to have been made within the Pen. Code 1510 period. Whether a 999a petition filed on day 16 can be entertained is case law (UNVERIFIED); treat 15 days as firm.
- If the clerk's office is closed or inaccessible on the last day (weather, emergency or local closure orders), the deadline may be extended. Check local orders.
This calculator applies the cited rules to the dates you enter. It is not legal advice. Court orders, local rules, and case-specific facts can change a deadline; verify before relying on it. Rule set pending attorney review.
Worked example
Date the trial court denied the 995 motion (lack of reasonable or probable cause) on Monday, March 15, 2027, personal service: due Tuesday, March 30, 2027.
- Trigger (Date the trial court denied the 995 motion (lack of reasonable or probable cause)): Monday, March 15, 2027.
- Exclude the trigger day and count 15 calendar days: Tuesday, March 30, 2027.
Notes
Filed in the Court of Appeal; copy served on the DA. Runs from denial in the trial court (no notice-of-ruling trigger). Pretrial review also requires the 995 motion to have been made within the Pen. Code 1510 period. Whether a 999a petition filed on day 16 can be entertained is case law (UNVERIFIED); treat 15 days as firm.
Related deadlines
- Defendant's writ petition after denial of suppression motion at special hearing (felony) (30 days after)
- People's writ petition after suppression motion granted at special hearing (felony) (30 days after)
- People's notice of intention to file writ petition when trial is set within 30 days (10 days after)
- People's writ petition to review a grant of probation (felony) (60 days after)
- People's writ petition to review a grant of probation (misdemeanor or infraction) (60 days after)
Local rules by county
County local rules and courtroom procedures can add to or change this deadline. Pick a county to calculate with them applied.
- Alameda
- Alpine
- Amador
- Butte
- Calaveras
- Colusa
- Contra Costa
- Del Norte
- El Dorado
- Fresno
- Glenn
- Humboldt
- Imperial
- Inyo
- Kern
- Kings
- Lake
- Lassen
- Los Angeles
- Madera
- Marin
- Mariposa
- Mendocino
- Merced
- Modoc
- Mono
- Monterey
- Napa
- Nevada
- Orange
- Placer
- Plumas
- Riverside
- Sacramento
- San Benito
- San Bernardino
- San Diego
- San Francisco
- San Joaquin
- San Luis Obispo
- San Mateo
- Santa Barbara
- Santa Clara
- Santa Cruz
- Shasta
- Sierra
- Siskiyou
- Solano
- Sonoma
- Stanislaus
- Sutter
- Tehama
- Trinity
- Tulare
- Tuolumne
- Ventura
- Yolo
- Yuba
Rules current as of 2026-10-25. Confirm against the official source and any local rule or court order before relying on a date. Rules changelog.