A watershed NSW police review examining the deaths of dozens of LGBTQI people over some 25 years will be in the spotlight at a special commission of inquiry
The inquiry's second block of hearings for the year will probe several police strike forces formed to investigate suspected hate crimes between 1970 and 2010.
Of particular focus are the workings of Strike Force Parrabell, a three-year review of 88 deaths of LGBTQI people from 1976 to 2000.
Its final report in 2018 concluded 23 deaths remained unsolved.
Current and former senior NSW Police officers will give evidence regarding Parrabell and other Strike Forces such as Neiwand and Macnamir and Operation Taradale.
Academics whose review of the methodology and results of the final report of Strike Force Parrabell will also give evidence.
Last year, the inquiry was told an independent academic review by Flinders University researchers had found holes in the report's methodology.
Former Massachusetts attorney-general Martha Coakley is also slated to give expert evidence.
In the inquiry's first hearings, held late last year, Assistant Police Commissioner Anthony Crandell admitted past police indifference to gay bashings had been coupled with a tacit social tolerance.
The block of hearings is expected to run for approximately two weeks.