Lauren Martell claims to have witnessed an alleged incident involving Rolf Harris in the bathroom of a London music studio in the early 1990s.
The woman contacted the Metropolitan Police in November when she first heard of the investigation into Jimmy Savile.
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An inspection by the borders and immigration watchdog said targets were split between 19 areas across the UK.
The attacker dubbed the ‘East Area Rapist’ is accused of at least 12 murders and 45 rapes across California.
Showers will be focused across Scotland, Northern Ireland and northern England where they will be frequent, heavy and blustery.