What this category of data looks like
Document sources for law enforcement case handling include structured documents exported from administrative law enforcement case handling systems, transcribed text from law enforcement recorder footage, and public information from the national enterprise credit information public disclosure system and departmental supervision databases. The update frequency is daily. Daily documents include fixed-format materials such as on-site inspection records, interrogation records, evidence lists, prior administrative penalty notification letters, and penalty decisions. Most document fields are fixed items related to law enforcement, including subject of violation, violation circumstances, penalty basis, service information, and others. Some transcribed text contains unstructured colloquial content, and the overall structure follows the fixed process of administrative law enforcement case handling.
What constraints these characteristics impose on the document parsing and chunking link
Diverse document sources require the parsing function to adapt to both structured exported files and unstructured transcribed text, to avoid field loss or semantic fragmentation. The daily business rhythm requires the parsing process to be efficient, and cannot tolerate excessively long waiting times. Fixed-format law enforcement documents require chunking to retain contextual connections, such as the question-and-answer section of interrogation records and the corresponding relationship between evidence lists and penalty decisions, and must not be arbitrarily split to destroy logical closure. At the same time, errors in law enforcement case files directly affect administrative reconsideration and case review results, so parsing and chunking must ensure that key information is not omitted or misaligned.
How to configure the settings
Reference only; verify against the target FastGPT release and deployment documentation.
| Configuration Item | Recommended Setting | Rationale |
|---|---|---|
chunkSize | 800–1200 characters | Administrative penalty documents mostly use fixed formats, and each chunk needs to cover the complete logic of a single record or single penalty decision, to avoid splitting question-and-answer content or breaking evidence associations |
chunkSplitter | Split by paragraph + semantics | Law enforcement documents have fixed headers and continuous question-and-answer content, splitting by paragraph preserves semantic coherence and adapts to subsequent associated retrieval needs |
customPdfParse | Enable high-precision OCR mode | Some documents come from scanned PDFs exported from law enforcement recorders, and high-precision mode can accurately recognize text in handwritten records or low-resolution scanned documents |
PARSE_FILE_TIMEOUT_SECONDS | 120–180 seconds | A single law enforcement case file may contain multiple scanned documents, so sufficient parsing time must be reserved to avoid mid-process timeout interruptions |
UPLOAD_FILE_MAX_SIZE | 500 MB | Law enforcement case files may integrate multiple law enforcement documents and image transcription files, so the configuration needs to support upload and parsing of large-capacity files |
chunkSettingMode | Manual configuration | Chunking parameters need to be adjusted according to different law enforcement document types, and automatic mode is difficult to adapt to fixed-format law enforcement document scenarios |
Three common configuration mistakes
- The specified PDF parsing function entry cannot be found in the interface. The cause is that the advanced configuration page was not accessed, and all parsing configuration items are not visible in simple mode only.
- An OCR Error is returned when parsing a law enforcement case file PDF. The cause is that high-precision OCR mode was not enabled, or the uploaded PDF is encrypted or has insufficient resolution.
- Parsing times out after uploading a law enforcement case file, but the parsing service logs indicate that parsing completed successfully. The cause is that the
PARSE_FILE_TIMEOUT_SECONDSparameter was not adjusted, and the default timeout duration is insufficient for large-capacity law enforcement case files.
How to verify proper configuration
- Upload a standard interrogation record PDF, and check if the parsed text fully retains the question-and-answer content and the information of law enforcement personnel and the person being interrogated.
- Review the parsing task running logs, confirm that the
customPdfParseparameter is active, and no OCR-related error records are present. - Adjust the
chunkSizeparameter, then manually split the same law enforcement document, and check if the chunking results cover the complete logic of a single record. - Test uploading a law enforcement case file compressed package within 500 MB, and confirm that the upload and parsing processes do not experience timeout interruptions.
The values provided here are common starting points, and should be evaluated against the user's own specific samples.
Question material comes from public community discussions. Configuration values are common starting points and should be measured against your own samples. Verified on 2026-09-28.