UK Guide to Investigation Services
Investigation services are used to collect information for use in a specific situation. Evidence is gathered using a methodical system and data is recorded carefully in case it is to be used in a court of law.
Detective agencies provide investigation services. A detective is often a member of a police department and will operate with the goal of collecting evidence. In some European countries, however, detectives are often university graduates who do not typically have specific experience as a member of a police agency.
Investigation by a detective can take a lot of work and often includes many hours of following someone, making phone calls and taking and developing photographs.
The research involved in investigation can also be quite substantial and the knowledge of laws is essential to determine what evidence can legally be used to convict someone for a crime.
Detective agencies are competitive and detectives must have special training in the subjects of procedures of investigation, interviewing and interrogation.