The word 'ringleader' is correct and usable in written English.
You can use it to refer to the leader or coordinator of a group of people that are doing something together, usually something illegal or unethical. Example sentence: The police pinpointed the ringleader of the organized crime group and arrested him.
In year seven, I was assigned to share a desk with the ringleader.
Police arrested a ringleader – the local minister, Brydon Maben – and it took the intervention of then local MP, David Steel, to defuse the incident.
The Guardian understands the ISC report details how MI5 officers monitored four meetings in early 2004 between Mohammed Siddique Khan and Shehzad Tanweer - the ringleaders of the 7/7 attacks - and Omar Khyam, the ringleader of a plot to blow up shopping centres and nightclubs who was jailed for life in 2007.
He aspired to emulate the "respectable project that took place in Madrid" (the Madrid train bombings) and was the ringleader of the plot, said Edmund Lawson QC, for the crown.
The alleged gang ringleader, Rosemere Aparecida Ferreira, reportedly admitted to police that Jandyra had paid R$4,500 (£1,100) for the termination carried out by an unlicensed doctor, Carlos Augusto Graça de Oliveira, but said she had not been there at the time.
In 1562, Pieter Bruegel the Elder gave his ringleader the wings of a swallowtail in The Fall of the Rebel Angels.
Two years after he apologised for his actions on Oprah Winfrey's TV show, he has told the BBC – in an interview to be broadcast on Thursday – he thought he'd been punished too much, that he wasn't a ringleader or a bully, and that if you took him back to 1995 he'd dope all over again.
But democratic consent for such harsh measures rests on being able to show Italians that they will ultimately benefit.Mr Monti says resentment in Italy of Germany as a "ringleader of European intolerance" is already rising.
This came on the day that four men were found guilty of plotting to bomb the London Underground on July 21st 2005, but security forces faced accusations they had allowed the ringleader to slip through the net.Germany's Interior Minister has started a furious row by calling for new anti-terrorism laws, special detention centres and suggesting it can be appropriate to kill terrorist suspects.
It is the thorn which is the ringleader.
The man said to be the ringleader of the Abu Ghraib abuse was sentenced this week to ten years in jail.
