Spaces:
Running on Zero
Running on Zero
File size: 26,103 Bytes
62be02c | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 | """
SAULSGPT — LAYER 6: LEGAL KNOWLEDGE GRAPH
==========================================
Uses NetworkX to map institutional relationships across Indian law.
Acts as a high-speed (<1ms) post-retrieval context expander and reasoning anchor.
What it maps:
→ Act level replacements (IPC → BNS, CrPC → BNSS, IEA → BSA 2023)
→ Constitutional Overrides & Fundamental Rights (Articles 14, 19, 21, 22, 32, 226, 300A)
→ Criminal offences, punishments, and definitions (BNS / IPC)
→ Criminal procedure pipelines (Zero FIR → SP Escalation → S.156(3) Magistrate → S.482 Quashing)
→ Civil Procedure & Injunctions (Order 39, Order 7 Rule 11, Order 37 CPC)
→ Family & Matrimonial Law (HMA 13/24/25, HSA 6/8/30 Coparcenary, PWDVA 2005)
→ Commercial, Cheque Bounce & Arbitration (NI Act 138, S.27 Contract Act, Arb Act 1996)
→ Struck Down & Landmark Supreme Court Precedents (Shreya Singhal, Joseph Shine, Navtej Johar, Puttaswamy)
"""
import networkx as nx
from typing import List, Dict
# Canonical Act Aliases
ACT_ALIASES = {
"ipc": "IPC", "indian penal code": "IPC", "indian penal code, 1860": "IPC", "ipc_from_db": "IPC",
"crpc": "CrPC", "code of criminal procedure": "CrPC", "code of criminal procedure, 1973": "CrPC", "crpc_from_db": "CrPC",
"iea": "IEA", "indian evidence act": "IEA", "indian evidence act, 1872": "IEA", "iea_from_db": "IEA",
"bns": "BNS", "bns 2023": "BNS", "bharatiya nyaya sanhita": "BNS", "bharatiya nyaya sanhita 2023": "BNS",
"bnss": "BNSS", "bnss 2023": "BNSS", "bharatiya nagarik suraksha sanhita": "BNSS", "bnss_from_db": "BNSS",
"bsa": "BSA", "bsa 2023": "BSA", "bharatiya sakshya adhiniyam": "BSA", "bsa_from_db": "BSA",
"cpc": "CPC", "code of civil procedure": "CPC", "code of civil procedure, 1908": "CPC", "cpc_from_db": "CPC",
"constitution": "Constitution", "constitution of india": "Constitution", "the constitution of india": "Constitution",
"hma": "HMA", "hindu marriage act": "HMA", "hindu marriage act, 1955": "HMA", "hma_from_db": "HMA",
"hsa": "HSA", "hindu succession act": "HSA", "hindu succession act, 1956": "HSA",
"nia": "NIA", "negotiable instruments act": "NIA", "negotiable instruments act, 1881": "NIA", "nia_from_db": "NIA",
"ida": "IDA", "industrial disputes act": "IDA", "ida_from_db": "IDA",
"mva": "MVA", "motor vehicles act": "MVA", "motor vehicles act, 1988": "MVA", "mva_from_db": "MVA",
"pwdva": "PWDVA", "domestic violence act": "PWDVA", "protection of women from domestic violence act": "PWDVA"
}
def normalize_act_name(raw_name: str) -> str:
return ACT_ALIASES.get(raw_name.lower().strip(), raw_name)
class LegalKnowledgeGraph:
"""
Directed Knowledge Graph of Indian Law Relationships.
Built once at startup; queried in sub-millisecond time.
"""
def __init__(self):
print("[Graph] Initializing Institutional Legal Knowledge Graph...")
self.G = nx.DiGraph()
self._build_graph()
print(f"[Graph] Institutional Graph built: "
f"{self.G.number_of_nodes()} nodes, "
f"{self.G.number_of_edges()} edges\n")
def _build_graph(self):
"""Builds the comprehensive Indian legal relationship graph."""
# ── 1. MASTER ACT REPLACEMENTS (July 1, 2024) ──
self.G.add_edge("IPC", "BNS", relation="replaced_by", date="2024-07-01")
self.G.add_edge("CrPC", "BNSS", relation="replaced_by", date="2024-07-01")
self.G.add_edge("IEA", "BSA", relation="replaced_by", date="2024-07-01")
self.G.add_edge("Consumer_Protection_Act_1986", "Consumer_Protection_Act_2019", relation="replaced_by")
self.G.add_edge("Companies_Act_1956", "Companies_Act_2013", relation="replaced_by")
self.G.add_edge("Arbitration_Act_1940", "Arbitration_and_Conciliation_Act_1996", relation="replaced_by")
self.G.add_edge("FERA_1973", "FEMA_1999", relation="replaced_by")
self.G.add_edge("MRTP_Act_1969", "Competition_Act_2002", relation="replaced_by")
# ── 2. CONSTITUTIONAL HIERARCHY & WRIT REMEDIES ──
self.G.add_edge("Constitution", "IPC", relation="overrides")
self.G.add_edge("Constitution", "CrPC", relation="overrides")
self.G.add_edge("Constitution", "BNS", relation="overrides")
self.G.add_edge("Constitution", "BNSS", relation="overrides")
self.G.add_edge("Constitution", "CPC", relation="overrides")
self.G.add_edge("Article_14", "Equal_Protection", relation="guarantees")
self.G.add_edge("Article_19_1_a", "Free_Speech", relation="guarantees")
self.G.add_edge("Free_Speech", "Article_19_2", relation="subject_to_reasonable_restrictions")
self.G.add_edge("Article_20_1", "No_Ex_Post_Facto_Law", relation="guarantees")
self.G.add_edge("Article_20_2", "No_Double_Jeopardy", relation="guarantees")
self.G.add_edge("Article_20_3", "Right_Against_Self_Incrimination", relation="guarantees")
self.G.add_edge("Article_21", "Right_to_Life_and_Liberty", relation="guarantees")
self.G.add_edge("Article_21", "Right_to_Fair_Trial", relation="encompasses")
self.G.add_edge("Article_21", "Right_to_Privacy", relation="encompasses")
self.G.add_edge("Article_22", "Arrest_Safeguards", relation="guarantees")
self.G.add_edge("Article_32", "Supreme_Court_Writs", relation="empowers")
self.G.add_edge("Article_226", "High_Court_Writs", relation="empowers")
self.G.add_edge("Article_300A", "Right_to_Property", relation="protects_from_arbitrary_deprivation")
# ── 3. CRIMINAL LAW (BNS 2023 / IPC 1860) ──
# Murder & Homicide
self.G.add_edge("IPC_302", "BNS_103", relation="replaced_by")
self.G.add_edge("IPC_302", "IPC_300", relation="requires_definition_from")
self.G.add_edge("IPC_302", "IPC_299", relation="distinguished_from")
self.G.add_edge("IPC_302", "IPC_304", relation="lesser_offence")
self.G.add_edge("BNS_103", "BNS_101", relation="requires_definition_from")
# Theft, Extortion, Robbery
self.G.add_edge("IPC_378", "BNS_303", relation="replaced_by")
self.G.add_edge("IPC_379", "BNS_303_2", relation="replaced_by")
self.G.add_edge("IPC_383", "BNS_308", relation="replaced_by")
self.G.add_edge("IPC_384", "BNS_308_2", relation="replaced_by")
self.G.add_edge("IPC_390", "BNS_309", relation="replaced_by")
self.G.add_edge("IPC_392", "BNS_309_4", relation="replaced_by")
# Cheating, Forgery, Fraud
self.G.add_edge("IPC_415", "IPC_420", relation="defines")
self.G.add_edge("IPC_420", "BNS_318", relation="replaced_by")
self.G.add_edge("IPC_405", "IPC_406", relation="defines_criminal_breach_of_trust")
self.G.add_edge("IPC_406", "BNS_316", relation="replaced_by")
self.G.add_edge("IPC_463", "IPC_465", relation="defines_forgery")
self.G.add_edge("IPC_465", "BNS_336", relation="replaced_by")
self.G.add_edge("IPC_468", "BNS_338", relation="replaced_by")
self.G.add_edge("IPC_471", "BNS_340", relation="replaced_by")
# Hurt, Assault, Criminal Trespass
self.G.add_edge("IPC_319", "IPC_323", relation="defines_simple_hurt")
self.G.add_edge("IPC_323", "BNS_115", relation="replaced_by")
self.G.add_edge("IPC_324", "BNS_118", relation="replaced_by")
self.G.add_edge("IPC_320", "IPC_325", relation="defines_grievous_hurt")
self.G.add_edge("IPC_325", "BNS_117", relation="replaced_by")
self.G.add_edge("IPC_441", "IPC_447", relation="defines_criminal_trespass")
self.G.add_edge("IPC_447", "BNS_329", relation="replaced_by")
self.G.add_edge("IPC_425", "IPC_427", relation="defines_mischief_and_crop_damage")
self.G.add_edge("IPC_427", "BNS_324", relation="replaced_by")
self.G.add_edge("IPC_503", "IPC_506", relation="defines_criminal_intimidation")
self.G.add_edge("IPC_506", "BNS_351", relation="replaced_by")
# Matrimonial & Women Offences
self.G.add_edge("IPC_498A", "BNS_85", relation="replaced_by")
self.G.add_edge("IPC_498A", "BNS_86", relation="replaced_by")
self.G.add_edge("IPC_498A", "Arnesh_Kumar_2014", relation="governed_by_arrest_guidelines")
self.G.add_edge("IPC_304B", "BNS_80", relation="replaced_by")
self.G.add_edge("IPC_354", "BNS_74", relation="replaced_by")
self.G.add_edge("IPC_354D", "BNS_78", relation="replaced_by")
self.G.add_edge("IPC_375", "BNS_63", relation="replaced_by")
self.G.add_edge("IPC_376", "BNS_64", relation="replaced_by")
# Defamation & Conspiracy
self.G.add_edge("IPC_499", "IPC_500", relation="defines_defamation")
self.G.add_edge("IPC_500", "BNS_356", relation="replaced_by")
self.G.add_edge("IPC_120A", "IPC_120B", relation="defines_conspiracy")
self.G.add_edge("IPC_120B", "BNS_61", relation="replaced_by")
# ── 4. CRIMINAL PROCEDURE (BNSS 2023 / CrPC 1973) ──
# FIR & Police Escalation Ladder
self.G.add_edge("FIR", "CrPC_154", relation="filed_under")
self.G.add_edge("CrPC_154", "BNSS_173", relation="replaced_by")
self.G.add_edge("Zero_FIR", "BNSS_173_1", relation="mandated_under")
self.G.add_edge("Police_Refusal_FIR","CrPC_154_3", relation="escalate_to_SP")
self.G.add_edge("CrPC_154_3", "BNSS_173_4", relation="replaced_by")
self.G.add_edge("SP_Refusal", "CrPC_156_3", relation="apply_to_Magistrate")
self.G.add_edge("CrPC_156_3", "BNSS_175_3", relation="replaced_by")
self.G.add_edge("CrPC_156_3", "FIR_Registration_Order", relation="empowers_magistrate")
# Investigation, Chargesheet & Trial
self.G.add_edge("FIR", "Police_Investigation", relation="triggers")
self.G.add_edge("Police_Investigation", "Chargesheet", relation="leads_to")
self.G.add_edge("Chargesheet", "CrPC_173", relation="filed_under")
self.G.add_edge("CrPC_173", "BNSS_193", relation="replaced_by")
self.G.add_edge("Chargesheet", "Magistrate_Cognizance", relation="leads_to")
self.G.add_edge("Magistrate_Cognizance", "Trial", relation="leads_to")
self.G.add_edge("Trial", "Judgment", relation="leads_to")
self.G.add_edge("Judgment", "Appeal", relation="appealable_in")
# Land & Possession Peace Disputes (Executive Magistrate)
self.G.add_edge("Land_Breach_of_Peace", "CrPC_145", relation="governed_by")
self.G.add_edge("CrPC_145", "BNSS_164", relation="replaced_by")
self.G.add_edge("CrPC_145", "Possession_Restoration", relation="empowers_SDM")
self.G.add_edge("CrPC_145_3", "Crop_Protection_Order", relation="preserves_perishable_crops")
self.G.add_edge("Right_of_Way_Dispute", "CrPC_147", relation="governed_by")
self.G.add_edge("CrPC_147", "BNSS_166", relation="replaced_by")
# Inherent Quashing Powers
self.G.add_edge("Illegal_FIR", "CrPC_482", relation="quashing_petition")
self.G.add_edge("CrPC_482", "BNSS_528", relation="replaced_by")
self.G.add_edge("BNSS_528", "High_Court", relation="filed_before")
# Arrest, Remand & Bail
self.G.add_edge("CrPC_41", "BNSS_35", relation="replaced_by")
self.G.add_edge("CrPC_41A", "BNSS_35_3", relation="notice_of_appearance")
self.G.add_edge("CrPC_57", "BNSS_58", relation="24_hour_magistrate_production")
self.G.add_edge("CrPC_167", "BNSS_187", relation="remand_and_default_bail")
self.G.add_edge("CrPC_436", "BNSS_478", relation="bailable_offence_bail")
self.G.add_edge("CrPC_437", "BNSS_479", relation="non_bailable_offence_bail")
self.G.add_edge("CrPC_438", "BNSS_482", relation="anticipatory_bail")
self.G.add_edge("CrPC_439", "BNSS_483", relation="special_bail_powers_sessions_hc")
# Maintenance under Criminal Code
self.G.add_edge("Wife_Maintenance", "CrPC_125", relation="filed_under")
self.G.add_edge("CrPC_125", "BNSS_144", relation="replaced_by")
self.G.add_edge("BNSS_144", "Interim_Maintenance_Order", relation="empowers_court")
# ── 5. CIVIL PROCEDURE CODE (CPC 1908) & SPECIFIC RELIEF ──
self.G.add_edge("CPC_Suit", "CPC_Summons", relation="triggers")
self.G.add_edge("CPC_Summons", "CPC_Written_Statement", relation="leads_to_30_to_90_days")
self.G.add_edge("CPC_Written_Statement", "CPC_Trial", relation="leads_to")
self.G.add_edge("CPC_Trial", "CPC_Decree", relation="leads_to")
self.G.add_edge("CPC_Decree", "CPC_Appeal_S96", relation="first_appeal")
self.G.add_edge("CPC_Appeal_S96", "CPC_Second_Appeal_S100", relation="second_appeal_on_substantial_law")
self.G.add_edge("Defective_Plaint", "Order_7_Rule_11_CPC", relation="mandatory_rejection")
self.G.add_edge("Order_7_Rule_11_CPC", "Limitation_Act_1963", relation="checks_limitation")
self.G.add_edge("Order_7_Rule_11_CPC", "Court_Fees_Act_1870", relation="checks_valuation")
self.G.add_edge("Stay_Order_Request","Order_39_Rule_1_2_CPC", relation="temporary_injunction")
self.G.add_edge("Order_39_Rule_1_2_CPC", "Prima_Facie_Case", relation="requires")
self.G.add_edge("Order_39_Rule_1_2_CPC", "Balance_of_Convenience", relation="requires")
self.G.add_edge("Order_39_Rule_1_2_CPC", "Irreparable_Injury", relation="requires")
self.G.add_edge("Debt_Recovery_Suit","Order_37_CPC", relation="summary_suit")
self.G.add_edge("ADR_Settlement", "Section_89_CPC", relation="mediation_arbitration_lok_adalat")
# ── 6. FAMILY, MARRIAGE & SUCCESSION LAW ──
# Hindu Marriage Act, 1955
self.G.add_edge("HMA_13_1_i", "Adultery_Ground", relation="civil_ground_for_divorce")
self.G.add_edge("HMA_13_1_ia", "Cruelty_Ground", relation="ground_for_divorce")
self.G.add_edge("HMA_13_1_ib", "Desertion_Ground", relation="2_year_desertion_ground")
self.G.add_edge("HMA_13B", "Mutual_Consent_Divorce", relation="provides_for")
self.G.add_edge("Mutual_Consent_Divorce", "Amardeep_Singh_2017", relation="6_month_cooling_off_waiver")
self.G.add_edge("HMA_24", "Interim_Maintenance_Pendente_Lite", relation="provides_for")
self.G.add_edge("HMA_25", "Permanent_Alimony", relation="provides_for")
self.G.add_edge("HMA_9", "Restitution_of_Conjugal_Rights", relation="provides_for")
# Hindu Succession Act, 1956
self.G.add_edge("HSA_6", "Daughters_Coparcenary_By_Birth", relation="guarantees")
self.G.add_edge("Daughters_Coparcenary_By_Birth", "Vineeta_Sharma_2020", relation="supreme_court_benchmark")
self.G.add_edge("HSA_8", "Class_I_Legal_Heirs_Succession", relation="governs_self_acquired")
self.G.add_edge("HSA_30", "Testamentary_Will_of_Undivided_Share", relation="empowers_coparcener")
self.G.add_edge("Ancestral_Property_Dispute", "Partition_Suit", relation="remedy_before_civil_court")
# Domestic Violence Act (PWDVA 2005)
self.G.add_edge("Domestic_Violence", "PWDVA_2005_S12", relation="application_to_Magistrate")
self.G.add_edge("PWDVA_2005_S12", "PWDVA_S18", relation="protection_orders")
self.G.add_edge("PWDVA_2005_S12", "PWDVA_S19", relation="residence_orders")
self.G.add_edge("PWDVA_2005_S12", "PWDVA_S20", relation="monetary_relief")
self.G.add_edge("PWDVA_2005_S12", "PWDVA_S21", relation="temporary_custody")
# ── 7. COMMERCIAL, BANKING, LABOUR & PROPERTY ──
# Cheque Bounce (NI Act 1881)
self.G.add_edge("Cheque_Dishonour", "NI_Act_138", relation="criminal_offence")
self.G.add_edge("NI_Act_138", "NI_Act_138_b", relation="requires_15_day_legal_notice")
self.G.add_edge("NI_Act_138_b", "NI_Act_142", relation="30_day_magistrate_complaint_limitation")
# Indian Contract Act, 1872
self.G.add_edge("Non_Compete_Clause","Contract_Act_S27", relation="void_in_restraint_of_trade")
self.G.add_edge("Contract_Act_S27", "Percept_DMark_2006", relation="supreme_court_voidance_ruling")
self.G.add_edge("Contract_Breach", "Contract_Act_S73", relation="actual_loss_damages")
self.G.add_edge("Penalty_Clause", "Contract_Act_S74", relation="liquidated_damages_cap")
# Arbitration & Conciliation Act, 1996
self.G.add_edge("Arbitration_Interim_Relief", "Arbitration_Act_S9", relation="filed_before_court")
self.G.add_edge("Arbitrator_Appointment", "Arbitration_Act_S11", relation="high_court_petition")
self.G.add_edge("Unilateral_Arbitrator", "Arbitration_Act_S12_5", relation="void_ab_initio_TRF_Perkins")
self.G.add_edge("Arbitral_Award_Challenge", "Arbitration_Act_S34", relation="setting_aside_petition")
# Real Estate & Tenancy (RERA & TPA)
self.G.add_edge("Delayed_Flat_Possession", "RERA_2016_S18", relation="refund_with_interest")
self.G.add_edge("Tenant_Eviction", "TPA_1882_S106", relation="15_day_notice_to_quit")
self.G.add_edge("Unregistered_Lease_Over_11_Months", "Registration_Act_S17", relation="inadmissible_as_lease")
# Labour & Employment
self.G.add_edge("Unpaid_Salary_Claim", "Payment_of_Wages_Act_S15", relation="claim_before_authority")
self.G.add_edge("Minimum_Wages_Violation", "Minimum_Wages_Act_S22", relation="claim_before_Labour_Court")
self.G.add_edge("Gratuity_Eligibility", "Payment_of_Gratuity_Act_S4", relation="5_years_continuous_service")
# ── 8. STRUCK DOWN / UNCONSTITUTIONAL LANDMARK PRECEDENTS ──
self.G.add_edge("ITA_66A", "Shreya_Singhal_2015", relation="struck_down_free_speech")
self.G.add_edge("IPC_497", "Joseph_Shine_2018", relation="struck_down_gender_equality")
self.G.add_edge("IPC_377", "Navtej_Johar_2018", relation="read_down_consensual_sex")
self.G.add_edge("IPC_124A", "Vombatkere_2022", relation="stayed_and_omitted_in_BNS")
self.G.add_edge("IPC_303", "Mithu_Punjab_1983", relation="struck_down_mandatory_death")
self.G.add_edge("Aadhaar_Act_S57", "Puttaswamy_2018", relation="struck_down_private_mandate")
self.G.add_edge("Electoral_Bonds", "ADR_v_UOI_2024", relation="struck_down_right_to_know")
def _build_section_node(self, act_name: str, section_num: str) -> str:
canonical_act = normalize_act_name(act_name)
clean_sec = str(section_num).strip().replace(" ", "_")
return f"{canonical_act}_{clean_sec}"
def get_related_sections(self, act_name: str, section_num: str) -> List[Dict]:
node = self._build_section_node(act_name, section_num)
if not self.G.has_node(node):
return []
related = []
for neighbor in self.G.neighbors(node):
edge_data = self.G.get_edge_data(node, neighbor)
relation = edge_data.get("relation", "related_to")
related.append({
"source": node,
"target": neighbor,
"relation": relation,
"detail": edge_data
})
for predecessor in self.G.predecessors(node):
edge_data = self.G.get_edge_data(predecessor, node)
relation = edge_data.get("relation", "related_to")
related.append({
"source": predecessor,
"target": node,
"relation": f"is_{relation}_of",
"detail": edge_data
})
return related
def get_act_replacement(self, act_name: str) -> Dict:
canonical = normalize_act_name(act_name)
if not self.G.has_node(canonical):
return {}
for neighbor in self.G.neighbors(canonical):
edge_data = self.G.get_edge_data(canonical, neighbor)
if edge_data.get("relation") == "replaced_by":
return {
"old_act": canonical,
"new_act": neighbor,
"date": edge_data.get("date", "2024-07-01"),
"relation": "replaced_by"
}
return {}
def get_act_status(self, act_name: str) -> str:
replacement = self.get_act_replacement(act_name)
if replacement:
return "repealed"
return "active"
def get_constitutional_context(self, act_name: str) -> List[str]:
canonical = normalize_act_name(act_name)
context = []
if not self.G.has_node(canonical):
return context
for pred in self.G.predecessors(canonical):
edge_data = self.G.get_edge_data(pred, canonical)
if "override" in edge_data.get("relation", ""):
context.append(f"{pred} overrides {canonical} in constitutional conflict")
elif edge_data.get("relation") == "governs":
context.append(f"{pred} governs procedure under {canonical}")
return context
def get_procedure_chain(self, start_step: str) -> List[str]:
if not self.G.has_node(start_step):
return []
chain = [start_step]
current = start_step
visited = {start_step}
while True:
next_steps = [
n for n in self.G.neighbors(current)
if self.G.get_edge_data(current, n).get("relation")
in ["triggers", "leads_to", "next_step", "remedy_before_civil_court", "first_appeal", "appealable_in"]
and n not in visited
]
if not next_steps:
break
current = next_steps[0]
visited.add(current)
chain.append(current)
return chain
def get_struck_down_info(self, section_node: str) -> Dict:
if not self.G.has_node(section_node):
return {}
for neighbor in self.G.neighbors(section_node):
edge_data = self.G.get_edge_data(section_node, neighbor)
relation = edge_data.get("relation", "")
if "struck_down" in relation or "read_down" in relation or "stay" in relation:
return {
"section": section_node,
"case": neighbor,
"status": relation
}
return {}
def expand_context(self, layer2_results: List[Dict]) -> List[str]:
flat_insights = []
seen_acts = set()
seen_sections = set()
seed_nodes = []
for res in layer2_results:
raw_act = res.get("act_name", "")
raw_section = str(res.get("section_number", ""))
canonical_act = normalize_act_name(raw_act)
section_node = self._build_section_node(canonical_act, raw_section)
if canonical_act not in seen_acts:
seen_acts.add(canonical_act)
seed_nodes.append(canonical_act)
repl = self.get_act_replacement(canonical_act)
if repl:
flat_insights.append(
f"[LAW UPDATE] {repl['old_act']} has been replaced "
f"by {repl['new_act']} (effective {repl['date']}). "
f"Please refer to current legislation."
)
const_ctx = self.get_constitutional_context(canonical_act)
flat_insights.extend(const_ctx)
if section_node not in seen_sections:
seen_sections.add(section_node)
seed_nodes.append(section_node)
struck = self.get_struck_down_info(section_node)
if struck:
flat_insights.append(
f"[STRUCK DOWN WARNING] {struck['section']} is {struck['status']} "
f"in {struck['case']}. It is no longer valid law."
)
related = self.get_related_sections(canonical_act, raw_section)
for rel in related:
flat_insights.append(
f"Related: {rel['source']} {rel['relation']} {rel['target']}"
)
# ─── GNN MULTI-HOP PATHWAY DISCOVERY ───
try:
from gnn_engine import gnn_engine
gnn_prompt = gnn_engine.format_pathways_for_prompt(seed_nodes)
if gnn_prompt:
flat_insights.append(gnn_prompt)
except Exception as e:
print(f"[Graph] GNN pathway discovery note: {e}")
return flat_insights
# Singleton instance
legal_graph = LegalKnowledgeGraph()
if __name__ == "__main__":
print(f"Total Graph Nodes: {legal_graph.G.number_of_nodes()}")
print(f"Total Graph Edges: {legal_graph.G.number_of_edges()}")
|