Eleven people have been charged in connection with phone scams, which saw victims lose a total of more than £225,000...
The alleged courier fraud offences mostly happened in Hertfordshire and London, but there were also cases in Bedfordshire, the Thames Valley area, Surrey, Kent and Nottinghamshire.
In the majority of cases, elderly victims were reportedly contacted by people claiming to be from the police, saying they were investigating bank fraud.
The callers then asked the victims to take out large sums of money from their accounts and hand it over to a courier.
There were further unsucessdul attempts to scam a further £122,000 out of victims.
36 offences were reported to Police between March 1st and November 29th, 2016. A hearing is now taking place at West Herts Magistrates Court on October 10th.
Detective Sergeant Jon Leak, from Operation Manhunt, said: "We will continue to do all we can to track down those suspected of being involved in courier fraud.
We have done a lot of work to raise awareness of these scams but we need people to continue spreading the word to elderly friends, relatives and neighbours to help prevent more people falling victim to them.
Please remember that police and banks would never ask for your PIN over the phone and would never ask you to withdraw cash and hand it to a courier. If you receive a call you are suspicious of, please hang up and alert the police. Remember to wait at least five minutes, or use a mobile phone to ensure you aren't reconnected to the offender".
:: Anyone who thinks they may have been targeted should report it to police via the non-emergency number 101.