The number of arrests and cases of ill-treatment of alleged FNL rebels, frequent in late 2005 and early 2006, reduced after the signing of the September 2006 Ceasefire Agreement.[62] The ceasefire created a legal status for the rebels, in effect prohibiting the arrest of individuals on the basis of FNL membership alone.[63] However, this provision was not incorporated into Burundian law, which contributed to confusion on the part of some police and judicial officials, and allowed willful misinterpretation on the part of others. Although after the ceasefire FNL members enjoyed “provisional immunity” for past crimes, some officials, in violation of the ceasefire, treated FNL membership itself as a crime.