Payroll is a huge expense. Many companies across the United States still rely on paper timesheets. One of the issues with paper timesheets and this type of record tracking is that people aren’t always accurate- sometimes accidentally and sometimes deliberately.
You trust your drivers- if you didn’t, you wouldn’t keep them working for you. Truth be told, most businesses don’t have drivers that are directly stealing from them, just maybe adding a few minutes here or there or rounding up or down o suit the situation.  One of the most common ways this is done is with their supposed time worked: