Summarize this article in one sentence.
Typically, in your first several months to a year or more as a detective you will be mentored and monitored closely to help you transition into the new line of work. You may start out working relatively simple criminal cases, before moving on to ones involving violent, serious, or complex crimes. Unlike their depictions on television, detectives spend most of their time researching cases and writing reports. They do also work cases on the ground and appear in court at times. Common duties include:   Collecting evidence Interviewing witnesses Observing suspects, locations, and events Obtaining warrants Writing official reports to support or close cases Testifying in court A detective needs to be highly observant and aware to do their job well. The ability to focus and to multi-task is key to solving many cases. If you find focusing difficult, you could try mindfulness exercises to help you discover how to “live in the now.” As you gain experience in working a variety of cases, opportunities for promotion may come your way. For example, you may be eligible for promotion to senior detective after a certain number of years of service. Do the best job you can, and let your superiors know that you are interested in advancement opportunities.

Summary:
Serve your probationary period. Master the day-to-day duties of a detective. Practice mindfulness. Wait for advancement opportunities.