There was a relatively short mast that allowed fast rigging and unrigging. Turnbuckles are used for tensioning a ship's rigging and lashings. Grips are trained lighting and rigging technicians. All the yards are manipulated by a complicated arrangement of cordage named the running rigging. Hawkins made important improvements in ship construction and rigging. Cartel behavior includes price fixing, bid rigging, and reductions in output. The elections were marred by violence and claims of vote rigging. However PNA led opposition started demonstrations at perceived rigging in elections. BYuT warned that these amendments would create opportunities for the massive rigging of elections. PMLN blamed this primarily on alleged vote rigging and administrative malpractices. Twin screws rendered this extra rigging unnecessary. The 2018 Bangladeshi general election was marred by allegations of widespread vote rigging. Mutua was declared winner amid claims of election rigging. There were also allegations of widespread vote rigging. Diaz remained in power by rigging elections and censoring the press.