A week in the battle between detectives and Merseyside's criminal underworld A number of high-profile raids were carried out on Merseyside or linked to the region over the past week Updated Seven people have been arrested after raids in Liverpool and Oldham as part of Operation Venetic (Image: Greater Manchester Police) Dozens of suspects have been arrested, thousands of pounds seized and drugs valued at more than £1.5m recovered in a dramatic week in the battle between detectives and Merseyside's underworld. High-profile raids have been carried out in connection with probes linked to cross-country drugs gangs and the EncroChat communications network.