It is bad to lie as a cop.
One night James, a cop, arrested a drunk driver but was too tired to fill the paperwork out properly.
James wants the drunk driver convicted.
James admits that he forgot to fill out the paperwork and advises the DA to make a deal.
James fills out the paperwork two weeks later and testifies that he did it the night of the arrest.
The drunk driver takes the deal, which involves pleading guilty and a short jail sentence.
The drunk driver's attorney picks James' story apart during questioning, resulting in perjury charges.