“While Tunisia has earned high marks for enacting a new constitution and holding free presidential and parliamentary elections, critics have called for a revamp of security services with ties to remnants of the corrupt regime of deposed President Zine El Abidine Ben Ali. According to The International Crisis Group, the existing security apparatus — including the National Security, police, National Guard, civil defence and correctional services — is both repressive and ineffectual at combating the very real terrorism threat facing the country.”
Here is the link to the ICG report referred to above: http://www.crisisgroup.org/en/regions/middle-east-north-africa/north-africa/tunisia/161-reform-and-security-strategy-in-tunisia.aspx