The Gun powder treason in Great Britain of course.

Followed up action when this plot was discovered
taken from wikipedia.org

During the preparation, several of the conspirators had been concerned about fellow Catholics who would be present on the appointed day, and therefore killed. On Friday, 26 October Lord Monteagle received a letter while at his house in Hoxton, thought to be from his brother-in-law, conspirator Francis Tresham:

"My lord, out of the love I bear to some of your friends, I have a care for your preservation. Therefore I would advise you, as you tender your life, to devise some excuse to shift of your attendance at this Parliament, for God and man has concurred to punish the wickedness of this time. And think not slightly of this advertisement but retire yourself into your country, where you may expect the event in safety, for though there be no appearance of any stir, yet I say they shall receive a terrible blow, the Parliament, and yet they shall not see who hurts them. This counsel is not to be condemned, because it may do you good and can do you no harm, for the danger is past as soon as you have burnt the letter: and I hope God will give you the grace to make good use of it, to whose holy protection I commend you."

Monteagle had the note read out loud, possibly to warn the plotters that the secret was out, and promptly handed it over to Robert Cecil, 1st Earl of Salisbury, the Secretary of State.[7] The other conspirators learned of the letter the following day, but resolved to go ahead with their plan, especially after Fawkes inspected the undercroft and found that nothing had been touched.

The tip-off led Cecil to order a search of the vaults beneath the House of Lords, including the undercroft, during the night of 4 November. The fact that the lease was held by Percy, a known Catholic dissenter, added further to the authorities' suspicions. At midnight on 5 November, Thomas Knyvet (a Justice of the Peace) and a party of armed men discovered Fawkes guarding a pile of wood, not far from about twenty barrels of gunpowder, posing as "Mr. John Johnson". A watch, slow matches and touchpaper were found in his possession, and Fawkes was arrested. Far from denying his intentions during the arrest, Fawkes stated that it had been his purpose to destroy the King and the Parliament.[8] Nevertheless, Fawkes maintained his false identity and continued to insist that he was acting alone. Later in the morning, before noon, he was again interrogated. He was questioned on the nature of his accomplices, the involvement of Thomas Percy, what letters he had received from overseas and whether or not he had spoken with Hugh Owen.

He was taken to the Tower of London and interrogated there under torture. Torture was forbidden, except by the express instruction of the monarch or the Privy Council. In a letter of 6 November, King James I stated:

"The gentler tortours [tortures] are to be first used unto him, et sic per gradus ad maiora tenditur [and thus by steps extended to greater ones], and so God speed your good work."

The discovery of the Gunpowder Plot aroused a wave of national relief at the delivery of the king and his sons, and inspired in the ensuing parliament a mood of loyalty and goodwill, which Salisbury astutely exploited to extract higher subsidies for the king than any (bar one) granted in Elizabeth's reign.[9] In his speech to both Houses on 9 November, James expounded on two emerging preoccupations of his monarchy: the Divine Right of Kings and the Catholic question. He insisted that the plot had been the work of only a few Catholics, not of the English Catholics as a whole,[10] and he reminded the assembly to rejoice at his survival, since kings were divinely appointed and he owed his escape to a miracle.[11]

[edit] Trial and executions

On hearing of the failure of the plot, the conspirators fled towards Huddington Court near Worcester, a family home of Thomas and Robert Wintour. Heavy rain, however, slowed their travels. Many of them were caught by Richard Walsh, the Sheriff of Worcestershire, when they arrived in Stourbridge.

The remaining men attempted a revolt in the Midlands. This failed, coming to a dramatic end at Holbeche House in Staffordshire, where there was a shoot-out resulting in the deaths of Catesby and Percy and capture of several other principal conspirators. Jesuits and others were then rounded up in other locations in Britain, with some being killed by torture during interrogation. Robert Wintour managed to remain on the run for two months before he was captured at Hagley Park.
Seventeenth century print of the members of the Gunpowder plot being hanged, drawn and quartered.

The conspirators were tried on 27 January 1606 in Westminster Hall. All of the plotters pleaded "Not Guilty" except for Sir Everard Digby, who attempted to defend himself on the grounds that the King had reneged on his promises of greater tolerance of Catholicism. Sir Edward Coke, the attorney general, prosecuted, and the Earl of Northampton made a speech refuting the charges laid by Sir Everard Digby. The trial lasted one day (English criminal trials generally did not exceed a single day's duration) and the verdict was never in doubt.

The trial ranked highly as a public spectacle, and there are records of up to 10 shillings being paid for entry. It is even reputed that the King and Queen attended in secret. Four of the plotters were executed in St. Paul's Churchyard on 30 January. On 31 January, Fawkes, Winter and a number of others implicated in the conspiracy were taken to Old Palace Yard in Westminster, in front of the scene of the intended crime, where they were to be hanged, drawn and quartered.

Fawkes, though weakened by torture, cheated the executioners: when he was to be hanged until almost dead, he jumped from the gallows, so his neck broke and he died, thus avoiding the gruesome latter part of this form of execution. A co-conspirator, Robert Keyes, attempted to do the same, but unfortunately for him the rope broke, so he was disemboweled while fully conscious.

Henry Garnet was executed on 3 May 1606 at St Paul's. His crime was of being the confessor of several members of the Gunpowder Plot, and as noted, he had opposed the plot. Many spectators thought that his sentence was too severe. Antonia Fraser writes:

"With a loud cry of 'hold, hold' they stopped the hangman cutting down the body while Garnet was still alive. Others pulled the priest's legs ... which was traditionally done to ensure a speedy death".[12]

Due to the Gunpowder Plot many Catholics found themselves persecuted or imprisoned in the Tower of London.

Cruel Imprisonment worst than Gitmo, Torture, alive disembowelment, burning slowly on stake like Cranmer. Sure glad I'm a Muslim. We got the stoning rituals, beheading n hand cutting. Specifically for Bernard Madoff look alike ponzy or mindless snatch thief that inflict gruesome wound on victims n even death, sinners, killers n never the innocents. Some instances even required their own willingness to undergo the execution to purify themselves from sins n the never ending torment of n in the hell fire. If not it would not have been carried out. Any small doubts would have null the executions. Check the Sirah gents! Islam brought by Muhammad sure is not Islam Hadhari, but the progress that came after it engulf all the stupidity of mankind throughout the world. Alhamdulillah.