The city is encouraging New Yorkers to report criminal behavior and misconduct as soon as they see it.

The City Department of Investigation launched its "Shine a Light on Shady Behavior" campaign this week.

The ads are posted in subway stations and city agencies in all five boroughs. 

The campaign calls on you to report instances of corruption and bribery, like back alley deals, illegal construction sites and fraudulent inspections. 

If you see this type of behavior you're asked to call the Department of Investigation at 212-369-2364.