The large fire engulfed land near Dove Stone Reservoir on Saturday and has been burning ever since.
The legislation cleared the House of Commons in Sir Keir Starmer's final days as prime minister.
Counter terror police say they have obtained a warrant to hold a 28-year-old suspect for up to seven days.
Twelve of the 13 victims were foreign nationals, Spanish authorities said on Tuesday.
The couple's daughter tells the court her father is a "jealous, conniving, narcissistic villain".
France's President Emmanuel Macron praised Starmer's "decency" and contribution to Ukraine and the security of Europe.
