What exactly are the police investigating?
The subject of the investigation is a combination of various breaches of sporting ethics.
"The primary source is betting, but there are also several cases involving sports corruption," said Kamil Javůrek, integrity manager of the Football Association of the Czech Republic (FAČR).
Which clubs and individuals are involved in the case?
The biggest name is the first league club Karvina. Among the suspects is the club boss, Jan Wolf, who is also the city's mayor, and then there's Karvina midfielder Samuel Sigut.
The suspects include other officials: Martin Latka (co-owner of Opava), Pavel Byma, Daniel Černaj, Tomáš Linhart and David Hock.
In addition to Karvina, the list of clubs involved in the case also includes the second league clubs Opava, Chrudim and Ceske Budejovice, and from the lower leagues Chlumec nad Cidlinou, Frydek-Mistek, Vratimov and Usti nad Orlici.
Read more: Corruption scandal rocks Czech football as police arrest dozens
Why did the case break two days before the World Cup playoffs?
The Football Association, even though it is the initiator, according to its chairman, did not influence the date of the launch of the police raid.
"We cannot influence when the police will carry out any action. We conduct our internal investigations, we cooperate with the police, but these processes, we are not able to influence in any way," explained David Trunda.
Who initiated the investigation and when?
The Football Association of the Czech Republic itself, according to its chairman, drew the attention of the police to the issue of match-fixing, and it was a long-term issue over a period of years.
"Since the beginning of my presidency, we want the FAČR to act transparently, and I will do everything I can to ensure that the betting mafia disappears from the Czech sports environment and its organisers end once and for all. There is absolutely no place for it in Czech football," said Trunda.
Beyond the police investigation, the association itself conducted its own internal investigation.
Could the case affect the results of the current season in the leagues?
FAČR management did not want to comment on possible deduction of points after match fixing or other sanctions.
"It is not for us to comment or react in any way. Everything is at the beginning, and we have to wait. So we cannot answer that," Trunda clarified.
What awaits those found to be guilty?
Apart from the police investigation and possible charges in civil court, the case is also being handled by the FAČR.
"The Ethics Committee managed to initiate 47 disciplinary proceedings this morning. These are matters of match-fixing, i.e. influencing the course of a match, and bribery," said Martin Holub, chairman of the Ethics Commission. For these offences, the accused could face suspension from football for several months to life.