DISGRACED former Tweed detective Shane Diehm will appear in court to answer allegations of lying to the Police Integrity Commission.
Diehm, who tested positive for cocaine after a party in August 2011, is charged with four counts of providing false or misleading information to the integrity commission.
He was discharged from the police force on full entitlements in November last year.
The charges come as part of an ongoing investigation into a number of serving and former police officers.
A Police Integrity Commission spokeswoman confirmed the former senior Tweed detective was part of Operation Ischia and was being charged.
The operation is investigating a number of serving and former NSW police officers in relation to allegations of drug use, drug supply, release of confidential police information and issues relating to the police force's medical discharge system.
"It is on going," the spokeswoman said.
Operation Ischia is a joint agency agreement with the Queensland Crime and Misconduct Commission, as a number of suspected offences are believed to have taken place across the border.
The spokeswoman further said Matthew Dennis, a colleague of Diehm's, was also charged with of lying to the Police Integrity Commission.
Both men will face the Downing Centre Local Court in July.
Update your news preferences and get the latest news delivered to your inbox.