detectives

"Let me tell you how it happened."

"The school officer made sure all the students stayed in line during the parade. "

"He interviewed the witness."

"The investigator looked into the missing library books. "

"Strict enforcement of the school's dress code is necessary to maintain order. "

"There is no evidence that anyone was here earlier."

"Yesterday our local garage employed a new mechanic."

"We have an available candidate."

"He said he didn’t do it, but the evidence was otherwise."

"The information about the project deadline resolved my uncertainty; now I know what needs to be completed. "

"to investigate the causes of natural phenomena"

"She can bear witness, since she was there at the time."