For sampling purposes, the law enforcement agencies were
separated into two groups: self-representing (SR) and
non-self-representing (NSR) agencies. All state police or agencies
with 100 or more sworn full-time equivalent (FTE) employees are
SR. All remaining agencies in sheriff's department, local police, and
special police categories are NSR.;
The universe for the 1999 SSLEA survey consists of agencies listed in the 1996 Directory Survey of Law Enforcement Agencies. The directory includes all state and local law enforcement agencies that are publicly funded and employ at least one full-time or part-time sworn officer with general arrest powers.
computer-assisted self interview (CASI)