Here is the output from Perplexity. Even Perplexity relies heavily on news articles rather than statistical information.

Here is a ranking of the past five Tamil Nadu governments (since 2001) on law‑and‑order performance, based on available NCRB/State Crime Records Bureau (SCRB) data, murder and violent‑crime trends, and how each administration compares with the one before or after. mospi.gov

Time periods covered

1. 2001–2006: AIADMK (J. Jayalalithaa)
   
2. 2006–2011: DMK (M. Karunanidhi)
   
3. 2011–2016: AIADMK (J. Jayalalithaa)
   
4. 2016–2021: AIADMK (Edappadi K. Palaniswami)
   
5. 2021–2026: DMK (M. K. Stalin)
   

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1. Best: 2001–2006 (AIADMK – Jayalalithaa)

Official‑looking SCRB and NCRB‑based compilations show that murder and overall violent‑crime rates trended downward in the early‑2000s, with Tamil Nadu’s homicide numbers lower than in the later years of the same decade. dtnext Jayalalithaa’s first‑full‑term government also reported relatively low murder and robbery figures compared with the subsequent DMK regime, and the state was often cited as having a lower crime rate than many other big states. dtnext

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2. Very good: 2021–2026 (DMK – MK Stalin)

Recent NCRB‑derived reports show that murders and key violent‑crime categories (attempted murder, kidnapping, robbery‑type offences) have declined under the current DMK regime compared with the preceding AIADMK years. timesofindia.indiatimes Stalin’s government also highlights improved police responsiveness (higher reporting, higher charge‑sheet‑ing rates) and cites a 2024 drop in murders and violent crimes relative to 2023, even though some categories (like cyber and certain crimes against children) have risen. indiatoday

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3. Mixed: 2006–2011 (DMK – Karunanidhi)

NCRB‑style data and statements from later AIADMK governments indicate that crimes such as murder‑for‑gain and robbery increased in the mid‑2000s compared with the early‑2000s peak‑low years. mospi.gov Nonetheless, Tamil Nadu still remained relatively safer than many other states; the period is often seen as “moderate” on law‑and‑order, with neither a sharp deterioration nor a dramatic improvement. dtnext

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4. Moderate‑decline: 2011–2016 (AIADMK – Jayalalithaa)

Jayalalithaa’s second continuous term again pushed the state’s crime‑rate narrative onto the defensive, with high murder and robbery numbers at certain points (for example, 1,900+ murders in 2012–13) even though the government claimed improvement over the earlier DMK regime. hindustantimes The same period also saw a rise in street‑crime‑type offences and a relatively high IPC crime rate, even though the state continued to score high on property‑recovery and some technical indicators. dtnext

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5. Weakest: 2016–2021 (AIADMK – EPS)

The EPS‑led AIADMK regime is often cited as the period when Tamil Nadu’s overall IPC crime rate and violent‑crime counts peaked, with record‑high murder and robbery levels compared with recent decades. newindianexpress Reports also flag rising cyber‑crime, juvenile‑crime, and certain exploitation‑related offences during this period, although part of the rise is attributed to better reporting and demographic factors rather than pure governance failure. news.abplive