| norm | No | Cited-provision filter (Norm) — "DSG §1", "DSGVO Art32", "GewO 1994 §129", matching the format returned in norms_cited. The highest-value case-law filter. | |
| page | No | 1-based result page. Default 1. | |
| court | Yes | Which court/tribunal application to search — one per call. Codes, coverage windows, and successor mapping: ris_list_reference topic courts. | |
| party | No | Political party the decision concerns (upts only). Documented values: ÖVP, SPÖ, FPÖ, KPÖ, BZÖ, Team Stronach — the filter is full-text, and further party names appear in live data (e.g. "Wandel"). | |
| query | No | Full-text search over decisions (Suchworte). Boolean UND/ODER/NICHT or AND/OR/NOT, quoted phrases, trailing-only * wildcard. | |
| state | No | Which of the nine state administrative courts/senates to search (lvwg and uvs only). | |
| senate | No | Commission senate (gbk only). | |
| sort_by | No | Sort column. Default: upstream order. Not available for court: normenliste, which indexes laws rather than decisions. | |
| page_size | No | Documents per page — RIS accepts 10, 20, 50, or 100. Default 20. | |
| commission | No | Equal-treatment commission (gbk only): federal (Bundes-Gleichbehandlungskommission) or general (Gleichbehandlungskommission). | |
| court_name | No | Filter within the ordinary courts (justiz only) — "OGH", "OLG Wien", "LG Linz". | |
| decided_to | No | Latest decision date (YYYY-MM-DD). | |
| legal_area | No | Legal area (Rechtsgebiet, justiz only): civil (Zivilrecht) or criminal (Strafrecht). | |
| case_number | No | Exact Geschäftszahl — returns that decision’s documents. Formats differ per court (examples: ris_list_reference topic courts). Not available for normenliste. | |
| subject_law | No | Media statute the case concerns (Bereich, bks only) — e.g. "ORF-Gesetz", "Privatradiogesetz". | |
| decided_from | No | Earliest decision date (YYYY-MM-DD). Not available for normenliste. | |
| issuing_body | No | Deciding body (EntscheidendeBehoerde) — dsk, dok, pvak, and verg only. dsk: Datenschutzbehoerde (2014+) or Datenschutzkommission (up to 2013). Full value lists: ris_list_reference topic issuing_bodies. | |
| subject_area | No | Subject-area taxonomy filter (Fachgebiet, justiz only) — 39 exact German values like "Datenschutzrecht", validated locally: ris_list_reference topic justiz_subject_areas. The corpus carries no tagged documents yet (every value returns 0 hits, verified 2026-07-05) — filter with query or norm instead until RIS populates the tags. | |
| changed_since | No | Coarse recency filter — decisions changed in RIS within the interval. For exact windows use ris_track_changes. | |
| decision_kind | No | Decision kind (Entscheidungsart) — per-court value sets, validated locally: ris_list_reference topic decision_kinds. No such parameter exists for normenliste, dok, pvak, umse, bks, or upts. For justiz the four documented values are not yet populated in the corpus (every value returns 0 hits, verified 2026-07-05) — filter justiz with query or norm instead. | |
| decision_type | No | Search headnotes (Rechtssätze), full decision texts (Entscheidungstexte), or both (all, the default). Not available for gbk, upts, or normenliste. | all |
| sort_direction | No | Sort direction; applies with sort_by. | |
| collection_number | No | Official collection number (Sammlungsnummer). vfgh, vwgh, and uvs only, and the accepted form differs: vfgh and uvs store the bare number and match it dotted or undotted ("19632", "19.632"), while vwgh stores the full labelled undotted cite — pass "VwSlg 18000 A/2010", or the space-anchored prefix "VwSlg 18000 *" when the part letter or year is unknown. A bare or dotted number matches nothing under vwgh. | |
| discrimination_ground | No | Discrimination ground (gbk only): Alter (age), EthnischeZugehoerigkeit (ethnic origin), Geschlecht (gender/sex), Mehrfachdiskriminierung (multiple grounds), Religion (religion), SexuelleOrientierung (sexual orientation), Weltanschauung (worldview/belief). Upstream German enum values, sent verbatim. | |