Help to reduce graffiti on our local streets. West Yorkshire Police are piloting "Graffiti Alerts" using photo-sharing site Flickr.
The site features graffiti photos, as well as locations, of a number of areas within the county.
The system is still being developed - more photos and areas will be added shortly.
If you recognise any of the graffiti "tags" or images, you can report your suspicions online to Crimestoppers - and you might even qualify for a small reward.
Check our our photos and see if you can help on: www.flickr.com/photos/westyorkshiregraffitialerts
A scrolling Graffiti Alerts flickr gallery will appear automatically below.