This website is currently undergoing major changes. Some information may be outdated. Last Updated: 10/08/2025
Every crime is different so every investigation is different, but any investigation starts with the same steps to make sure we have all the information we need.
On this page we'll explain what happens after you report a crime, when you'll get a crime reference number and when we’ll contact you.
First, we’ll make sure that we’re the right police force to investigate the crime. For example, if it took place in a train station, British Transport Police (BTP) would be the right force; we'd send them your report and they'd investigate.
We’ll then look at the information we've got and decide if we can investigate your report further. If we decide we can't investigate your report, we'll contact you to explain why.
Our decision is based on four key factors:
vulnerability of the victim (eg is the victim in danger?)
seriousness of the crime
likelihood of solving it
best use of our resources
If we can investigate further, we'll take some initial steps. These could include:
talking to witnesses
assessing the crime scene
checking CCTV or video footage
gathering other evidence such as forensic samples
searching our intelligence database (to see if other crimes have happened in the area, or if we hold information related to the case)
Find out more about forensic evidence.
There are two possible outcomes:
We’ll close the investigation
We’ll move forward with the investigation
When we’ve made a decision, we'll contact you to let you know.
If we close the investigation, it’s probably because we've completed our initial steps and there are no other leads we can follow at that time.
Sometimes we get new information or discover new evidence, in which case we can reopen the investigation and update you.
Whether or not this happens, your report and the information we have is valuable. It helps decide where and when we use police resources to track down and prevent crime.
We’ll assign an investigating officer to you. They’ll be your contact during the investigation, answering your questions and keeping you updated.
If you need to give a statement, they’ll talk you through it.
In the unlikely event you need to go to court, they’ll introduce you to a member of the Witness Care Unit who'll guide you through each step of the process.
If you have new information or evidence about an existing crime, you can contact us to update an existing case or report online.
If you want an update on a crime that's already been reported, contact us to request an update on a crime report online.