A Nottingham gangland killer found guilty of using a corrupt detective to obtain sensitive police intelligence is to have his finances investigated.
Gunn used a corrupt detective to stay ahead of the law
Colin Gunn, 40, was found guilty on two counts of conspiracy to cause misconduct in public office at Birmingham Crown Court on 2 August.
He is already serving a life sentence for conspiring to murder Lincolnshire couple John and Joan Stirland in 2005.
Gunn will now be investigated by the Assets Recovery Agency (ARA).
He was sentenced to nine years in jail on each count from the latest trial, to run alongside the life sentences.
The murder of Joan and John Stirland at Trusthorpe in Lincolnshire in August 2004 was masterminded by Gunn.
He organised their killings in revenge for a murder carried out by Joan Stirland's son Michael O'Brien in Nottingham in 2003.
Police say the two killings are just the tip of the iceberg.
In court Gunn admitted running a drugs network in Nottingham, which officers believe made millions of pounds.
The ARA investigation will try to establish how much money he made from his crimes.
Any profits can be confiscated under the Proceeds of Crime Act.
During the latest trial, the court heard how Gunn used an intermediary to contact a corrupt detective, Charles Fletcher.
Fletcher was jailed for seven years in 2006 after he admitted making regular searches of police computers for information that the prosecution said would help Gunn avoid capture.
The jury was told that Gunn sent orders to Fletcher through Jason Grocock - a friend and associate who ran Limey's clothing store in Nottingham city centre.
Grocock would then send Gunn's demands to Fletcher, 27, who had worked in the shop before joining Nottinghamshire Police as a trainee detective constable in 2001.
Grocock was jailed for four years. Phillip Parr, another Nottinghamshire Pc, was sentenced to 12 months for his part in the conspiracy.