The second part of a safety review at Work and Income offices, started after the fatal shooting in Ashburton, will look at risk profiling clients and increasing CCTV.
Russell John Tully is charged with murdering Peggy Noble and Leigh Cleveland and the attempted murders of Lindy Curtis and Kim Adams on 1 September.
The first part of the safety review, released yesterday, said the Ministry of Social Development did not do anything wrong in the lead-up to the tragedy.
But it did recommend better information sharing, and taking a harder line on threatening behaviour.
As well as client risk profiling and more CCTV, phase two of the review is expected to consider more security staff, and the use of controlled access, and what is described as "mobile personal duress devices".
Following the shootings, the ministry introduced extra security guards and controlled access to its public-facing sites.
The review recommended these measures remain in place until phase two of the review is completed.