The only guidelines I can find all specify it must be a serious crime, as this example from the Sussex department
https://www.sussex.police.uk/cy-GB/...erious-crime-policy-surrey-and-sussex-327.pdf
Procedure
1. Use of a Reward
1.1 The use of a reward to progress an investigation can only be made if the offence meets one of the following serious crime criteria:
• That the offence is one in which a person who has attained the age of twenty-one and has no previous convictions could reasonably be expected to be sentenced to imprisonment for a term of three years or more or
• That the conduct of the offence involves the use of serious violence, results in substantial financial gain or is conducted by a large number of persons in pursuit of a common purpose or
• That in considering the particulars of the offence, the Senior Investigating Officer (SIO) and Head of Major Crime or Head of Crime for either Force agree that it must be treated as if it were so specified, in that it is a serious enough offence to merit a reward as a failure to progress the investigation could damage the confidence of the general public in the Forces.
9. Enhanced Rewards
9.1 Crimestoppers Trust may offer 'Enhanced Rewards' of up to £10,000 where information leads to arrest, charge and conviction. This offer is, however, only available for a few selected crimes where strict criteria apply as the Trust has a national responsibility with extremely tight funds.
9.2 The SIO must only consider an application for a Crimestoppers Enhanced Reward where all other reasonable lines of enquiry have been exhausted and the only further viable avenue to the investigation is the cultivation of anonymous information.
9.3 Application for Crimestoppers Enhanced Rewards must be authorised by the SIO and submitted for consideration to the Head of Major Crime and/or the Head of Crime for either Force.
10.1 Summary:
• Must be for a serious crime
•
Must have the SIO’s approval and be authorised by Head of Major Crime and/or Lead for Specialist Crime Command (SCC)
• Must be a last resort, e.g., the investigation is stalled
• CPS must be notified promptly
• Legal Services must be consulted in the case of third party reward offers
• The size of the reward must be specified
• A risk assessment must be in place for the payment plan
Team: Specialist Crime Command Major Crime Team
BBM