(b)

1. (1) Except as provided in paragraphs (4) and (5), a person who is convicted of a felony committed for the benefit of, at the direction of, or in association with a criminal street gang, with the specific intent to promote, further, or assist in criminal conduct by gang members, shall, upon conviction of that felony, in addition and consecutive to the punishment prescribed for the felony or attempted felony of which the person has been convicted, be punished as follows:

   1. (A) Except as provided in subparagraphs (B) and (C), the person shall be punished by an additional term of two, three, or four years at the court’s discretion.
   2. (B) If the felony is a serious felony, as defined in subdivision (c) of Section 1192.7, the person shall be punished by an additional term of five years.
   3. (C) If the felony is a violent felony, as defined in subdivision (c) of Section 667.5, the person shall be punished by an additional term of 10 years.
2. (2) If the underlying felony described in paragraph (1) is committed on the grounds of, or within 1,000 feet of, a public or private elementary, vocational, junior high, or high school, during hours in which the facility is open for classes or school-related programs or when minors are using the facility, that fact shall be a circumstance in aggravation of the crime in imposing a term under paragraph (1).
3. (3) The court shall order the imposition of the middle term of the sentence enhancement, unless there are circumstances in aggravation or mitigation. The court shall state the reasons for its choice of sentencing enhancements on the record at the time of the sentencing.

4. (4) A person who is convicted of a felony enumerated in this paragraph committed for the benefit of, at the direction of, or in association with a criminal street gang, with the specific intent to promote, further, or assist in criminal conduct by gang members, shall, upon conviction of that felony, be sentenced to an indeterminate term of life imprisonment with a minimum term of the indeterminate sentence calculated as the greater of:

   1. (A) The term determined by the court pursuant to Section 1170 for the underlying conviction, including any enhancement applicable under Chapter 4.5 (commencing with Section 1170) of Title 7 of Part 2, or any period prescribed by Section 3046, if the felony is any of the offenses enumerated in subparagraph (B) or (C) of this paragraph.
   2. (B) Imprisonment in the state prison for 15 years, if the felony is a home invasion robbery, in violation of subparagraph (A) of paragraph (1) of subdivision (a) of Section 213; carjacking, as defined in Section 215; a felony violation of Section 246; or a violation of Section 12022.55.
   3. (C) Imprisonment in the state prison for seven years, if the felony is extortion, as defined in Section 519; or threats to victims and witnesses, as defined in Section 136.1.
5. (5) Except as provided in paragraph (4), a person who violates this subdivision in the commission of a felony punishable by imprisonment in the state prison for life shall not be paroled until a minimum of 15 calendar years have been served.

(e)

1. (1) As used in this chapter, “pattern of criminal gang activity” means the commission of, attempted commission of, conspiracy to commit, or solicitation of, sustained juvenile petition for, or conviction of, two or more of the following offenses, provided at least one of these offenses occurred after the effective date of this chapter, and the last of those offenses occurred within three years of the prior offense and within three years of the date the current offense is alleged to have been committed, the offenses were committed on separate occasions or by two or more members, the offenses commonly benefited a criminal street gang, and the common benefit from the offenses is more than reputational:

   1. (A) Assault with a deadly weapon or by means of force likely to produce great bodily injury, as defined in Section 245.
   2. (B) Robbery, as defined in Chapter 4 (commencing with Section 211) of Title 8.
   3. (C) Unlawful homicide or manslaughter, as defined in Chapter 1 (commencing with Section 187) of Title 8.
   4. (D) The sale, possession for sale, transportation, manufacture, offer for sale, or offer to manufacture a controlled substance as defined in Section 11007 of the Health and Safety Code.
   5. (E) Shooting at an inhabited dwelling or occupied motor vehicle, as defined in Section 246.
   6. (F) Discharging or permitting the discharge of a firearm from a motor vehicle, as defined in subdivisions (a) and (b) of Section 12034 until January 1, 2012, and, on or after that date, subdivisions (a) and (b) of Section 26100.
   7. (G) Arson, as defined in Chapter 1 (commencing with Section 450) of Title 13.
   8. (H) The intimidation of witnesses and victims, as defined in Section 136.1.
   9. (I) Grand theft, as defined in subdivision (a) or (c) of Section 487.
   10. (J) Grand theft of any firearm, vehicle, trailer, or vessel.
   11. (K) Burglary, as defined in Section 459.
   12. (L) Rape, as defined in Section 261.
   13. (M) Money laundering, as defined in Section 186.10.
   14. (N) Kidnapping, as defined in Section 207.
   15. (O) Mayhem, as defined in Section 203.
   16. (P) Aggravated mayhem, as defined in Section 205.
   17. (Q) Torture, as defined in Section 206.
   18. (R) Felony extortion, as defined in Sections 518 and 520.
   19. (S) Carjacking, as defined in Section 215.
   20. (T) The sale, delivery, or transfer of a firearm, as defined in Section 12072 until January 1, 2012, and, on or after that date, Article 1 (commencing with Section 27500) of Chapter 4 of Division 6 of Title 4 of Part 6.
   21. (U) Possession of a pistol, revolver, or other firearm capable of being concealed upon the person in violation of paragraph (1) of subdivision (a) of Section 12101 until January 1, 2012, and, on or after that date, Section 29610.
   22. (V) Threats to commit crimes resulting in death or great bodily injury, as defined in Section 422.
   23. (W) Theft and unlawful taking or driving of a vehicle, as defined in Section 10851 of the Vehicle Code.
   24. (X) Prohibited possession of a firearm in violation of Section 12021 until January 1, 2012, and, on or after that date, Chapter 2 (commencing with Section 29800) of Division 9 of Title 4 of Part 6.
   25. (Y) Carrying a concealed firearm in violation of Section 12025 until January 1, 2012, and, on or after that date, Section 25400.
   26. (Z) Carrying a loaded firearm in violation of Section 12031 until January 1, 2012, and, on or after that date, Section 25850.
2. (2) The currently charged offense shall not be used to establish the pattern of criminal gang activity.