Finally, there are signs from the Royal Thai Police (RTP) and the Office of the Attorney General (OAG) over investigations into their high-ranking officials accused of interfering with the law in relation to the 2012 notorious hit-and-run case that involved the scion of the Red Bull empire, Vorayuth "Boss" Yoovidhya.
Both agencies late last week revealed details about fresh internal investigations against their own staff who are under accusation. Among accused officials are a former national police chief, a deputy national police chief, deputy attorney-general and a senior public prosecutor identified only as "Prosecutor C".
They are among 14 persons implicated in a report conducted by former graft buster Vicha Mahakun, who had been ordered by Prime Minister Prayut Chan-o-cha mid-last year to look into irregularities that surrounded this notorious case.
The RTP and OAG now have a last opportunity to prove their mettle. Both agencies have conducted disciplinary probes since last year, without much progress.
This time, the national police chief, Pol Gen Suwat Jangyodsuk, to some extent, deserves approbation as he spelt out a timeline for the probe which will be concluded by Nov 10. Pol Gen Visanu Prasattongosoth, a police inspector, was also appointed to head a new inquiry team, replacing those of a previous laggard probe panel.
But if the fresh probe turns out to be more of the same as we have seen in the past, pressure will fall on Pol Gen Suwat.
So far, the fresh inquiry sounds clinical.
Accused police as well as the lawyer of Red Bull's scion and "Prosecutor C" will be questioned on the adjustments to estimates of the speed at which Mr Vorayuth's car was travelling when the incident occurred. Police will also set up a team to examine audio clips of past conversations on the case, including meetings with police, prosecutors and the suspect's lawyer.
Also facing investigation would be Pol Col Thanasit Taengchan of the Office of Police Forensic Science who examined the scene in 2012 and later changed his statement to revise the speed of Mr Vorayuth's Ferrari from 177kph to 79kph.
The greatly reduced speed estimation was an important factor in the decision by prosecutors to drop some of the latest charges against Mr Vorayuth.
The OAG meanwhile has started a new probe against "Prosecutor C", along with former deputy attorney general, Nate Naksuk. It was Mr Nate who decided to drop charges against Mr Vorayuth according to the new evidence relating to the change of car speed.
Both fresh probes -- despite coming a bit too late -- are welcomed. But it is far from enough to salvage public trust in the country's justice system.
The authorities should not and must not focus solely on hunting "bad apples". The primary task of a law enforcer -- in this case the OAG -- is to bring Mr Vorayuth, who fled the country in 2017, to stand trial in Thailand.
During the past four years, OAG has been slow in fulfilling this primary duty. Instead, it was the international media who easily traced down Mr Vorayuth and his entourage at what appeared to be an upscale location in London.
A drug charge and reckless driving charges against Mr Vorayuth remain active until Sept 3 next year and 2027, respectively.
The OAG must put great effort to bring him back to trial in Thailand, where he will be indicted properly and tried in court like any accused suspect.