The 187 police code: what it means.
It is not radio slang - 187 is California Penal Code section 187, the murder statute, borrowed by police scanners and three decades of hip-hop. What the section actually says is more precise than the mythology.
The section behind the slang.
Penal Code 187 defines murder in California: the unlawful killing of a human being, or a fetus, with malice aforethought. Officers reporting a “187” are naming that statute. The mythology came later - N.W.A, Sublime, and “One Eight Seven” the film moved the number into the culture, and now the code is shorthand nationwide even in states whose murder statutes carry entirely different numbers. New York prosecutes murder under Penal Law 125.25; the federal system under 18 U.S.C. § 1111. The number is Californian; the concept travels.
What 187 actually charges.
Malice aforethought splits the statute into degrees. First-degree murder - willful, deliberate, premeditated killings, plus felony-murder killings during enumerated felonies - carries twenty-five to life, and life without parole or capital exposure with special circumstances. Second degree - malice without premeditation - carries fifteen to life. California’s felony-murder rule was narrowed dramatically by SB 1437: accomplices who neither killed nor intended to kill, and were not major participants acting with reckless indifference, can no longer be convicted of murder for a co-defendant’s act - and people already serving those sentences can petition for resentencing under § 1172.6. That amendment quietly reopened thousands of cases.
How murder cases are actually defended.
Degree and malice are the battlefield: self-defense and imperfect self-defense, heat of passion reducing to voluntary manslaughter, accident and misfortune, identity and alibi in whodunit cases, and forensic war over cause and time of death. Modern California murder defense adds the statutory layer - SB 1437 petitions, youthful-offender parole, felony-murder resentencing. Federal murder charges (§ 1111 - on federal land, of federal officials, or in furtherance of other federal crimes) run parallel doctrine with federal sentencing. Homicide files are trial files - they get staffed, funded, and prepared like nothing else in the building.

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