Police say they want to speak to 30 potential witnesses – 40 years on from the disappearance of an estate agent.

Suzy Lamplugh left her West London office in July 1986 to show a flat to a client in Fulham, but was never seen again.

One report suggested her body may have been dumped in a canal.

Retired detective Jim Dickie who led the case, says they should look again.

The Met insists it has been searched.