A scold's bridle, sometimes called a witch's bridle, a brank's bridle, or simply branks, was an instrument of punishment, as a form of torture and public humiliation. The device was an iron muzzle in an iron framework that enclosed the head. A bridle-bit (or curb-plate), about 2 inches long and 1 inch broad, projected into the mouth and pressed down on top of the tongue.
First recorded in Scotland in 1567, the branks were also used in England, where it may not have been formally legalized as a punishment. The kirk-sessions and barony courts in Scotland inflicted the contraption mostly on female transgressors and women considered to be rude or nags or common scolds.
Branking (in Scotland and the North of England) was designed as a mirror punishment for shrews or scolds; women of the lower classes whose speech was deemed "riotous" or "troublesome"; — often women suspected of witchcraft — by preventing such "gossips or scolds" from speaking. This also gives it its other name 'The Gossip's Bridle'
It was also used as corporal punishment for other offences, notably on female workhouse inmates. The person to be punished was placed in a public place for additional humiliation and sometimes beaten. The Lanark Burgh Records record a typical example of the punishment being used, " Iff evir the said Elizabeth salbe fund scolding or railling… scho salbe sett upone the trone in the brankis and be banishit the toun thaireftir" (1653 Lanark B. Rec. 151).
Though primarily used on women, the Burgh Records of Scotland's major towns reveal that the branks were at times used on men as well: "Patrick Pratt sall sit … bound to the croce of this burgh, in the brankis lockit" (1591 Aberd. B Rec. II. 71) / "He shall be put in the branks be the space of xxiiij houres thairafter" (1559 (c 1650) Dundee B. Laws 19. )
When the branks was placed on the "gossiper's" head, they could be led through town to show that they had committed an offence or scolded too often. This was intended to humiliate them into "repenting" their "riotous" actions. A spike inside the gag prevented any talking since any movement of the mouth could cause a severe piercing of the tongue. When wearing the device, it was impossible for the woman either to eat or speak. Other branks included an adjustable gag with a sharp edge, causing any movement of the mouth to result in laceration of the tongue.