Patrick Colquhoun (14 March 1745 – 25 April 1820) was a Scottish merchant, statistician, magistrate, and founder of the first regular preventive police force in England, the Thames River Police.
Colquhoun, a descendent of the Scottish Clan Colquhoun of Luss, was born in Dumbarton in 1745. Orphaned at the age of 16, his relatives sent him to America, setting him up in the lucrative commercial trade in Virginia. In 1766, the 21-year-old Colquhoun returned to Scotland, settling in Glasgow and going into business on his own in the linen trade. Ten years later, with the outbreak of the American Revolution, Colquhoun sided against the rebels and, along with 13 other local businessmen, funded a Glasgow regiment to contribute to the government’s war effort.
He built an estate in the West End (now part of Kelvingrove Park) and, on 22 July 1775, married his cousin Janet, the daughter of James Colquhoun, the Provost of Dumbarton. Between 1782 and 1784, Patrick Colquhoun himself served as the Lord Provost of Glasgow. He also founded the Glasgow Chamber of Commerce and Manufacturing during that time, and made himself the first chairman. He was awarded an honorary LL.D. by the University of Glasgow in 1797.
Colquhoun was an avid statistician, and collected economic data. He used this information to lobby the government on behalf of the country’s industries, particularly cotton and muslin. His findings formed the basis of numerous pamphlets and treatise that he wrote promoting legal reform and business generally. On one occasion, he travelled to Manchester and compiled statistics on the cotton trade. He presented his findings to Prime Minister William Pitt in 1789, but they were not acted upon because of the war with France. These activities brought Colquhoun increasingly into contact with the political sphere and to the attention of government and in 1785 he moved to London to seek a government position, and was appointed Magistrate in the East End.