It enacted parliamentary privilege in law, prohibiting any suit or prosecution from being brought or punishment being imposed against any MP or peer for speaking on any matter in parliament.

The Act was originally a private act, passed in response to Strode's case, in which Strode had been imprisoned for obstructing tin mining, namely by introducing a bill for improving the working conditions of tin miners.

Consequent Recovery of Penalties against Strode in Stannary Courts, as for breach of an Act of the Parliament of Tinners at Crockerentor.

And that sutes accusementes condempnacions execucions fynes amerciamentes punysshmentes correccions greviances charges and imposicions putte or had or here after to be put or hadde unto or uppon the said Richard and to every other of the person or persons afore specified, that nowe be of this present parliament or that of any Parliament herafter shalbe for any bill spekyng reasonyng or declaryng of any mater or maters concernyng the parliament to be commened and treated of, be utterly voyd and of none effecte.

And that if the said Richard Strode or any of all the said oder person or persons here after be vexed trobeled or other wise charged for any causes as is aforseid, that then he or they and every of theym so vexed or troubeled of and for the same to have accion uppon the case ageynst every such person and persons so vexyng or troubelyng any contrarie to this ordynaunce and provysion, in the which accion the partie greved shall recover trebyll damages and costes, Be it inquyred for our Sovereyng Lord the Kyng that where as at the Parliament holden at Crockerentor before Thomas Denys deputie to Sir Henry Marney Knyght Wardeyn of the Steinary the xxiiij day of Septembre the second yere of the reigne of Kyng Henry the viijth it was ordeyned establisshed and enacted that frome the day aforsaid it shalbe lawfull for every man to dygge Tyn within the Countie of Devonshire in all placis where as Tyn may be founde; And also to cary the Water to ther Werkes without any lette or trouble of any person or persones accordyng to our usages and confirmacion and our chartour and accordyng to our Custome out of mynde: And if any person or persons let troble or vex any man to digge Tyn or to cary Water for the same contrarie to our olde custome and usage and if it be founde by verdyt of xij men at the Lawday, he that so lettyth vexeth or troubleth any such person or persons shall fall in the penaltie of £40 as ought as he so vexeth or troubleth the one halfe to my Lord Prince and the other halfe to hym that was so letted vexed or troubled, And a fieri facias to be warded as well for my Lord Prince as for the partie, if one Richard Strode of Plympton Tynner at the Parliament holden at Westmynster the iiijth day of Februarie last past letted vexed or troubled one William Rede the yongger and Elys Elford Tynners and all other Tynners in the same parliament for dyggyng of Tyn in the severall Soyle of the said Richard and other persons contrarie to this our Acte made.