Protesters gather in Parliament Square during a march calling for an end to...

Protesters gather in Parliament Square during a march calling for an end to...

Protesters pass through Central London during a march calling for an end to...

Protesters hold a 'Shut down Harlow Dog Track' banner in Trafalgar Square d...

Protesters pass through Central London during a march calling for an end to...

Protesters gather outside the Royal Courts of Justice during a march callin...

Protesters hold a 'Shut down Kinsley dog track' banner outside the Royal Co...

Protesters gather outside the Royal Courts of Justice during a march callin...

Protesters gather outside the Royal Courts of Justice during a march callin...

Protesters gather outside the Royal Courts of Justice during a march callin...

Protesters gather outside the Royal Courts of Justice during a march callin...

Protesters gather outside the Royal Courts of Justice during a march callin...

Protesters gather outside the Royal Courts of Justice during a march callin...

Protesters march in Fleet Street calling for an end to dog racing. The marc...

Protesters march in Fleet Street calling for an end to dog racing. The marc...

Protesters march in Fleet Street calling for an end to dog racing. The marc...

Protesters march near St Paul's Cathedral, calling for an end to dog racing...

Protesters march near St Paul's Cathedral, calling for an end to dog racing...

Protesters march near St Paul's Cathedral, calling for an end to dog racing...

Protesters march near St Paul's Cathedral, calling for an end to dog racing...

Protesters march near St Paul's Cathedral, calling for an end to dog racing...

Protesters march near St Paul's Cathedral, calling for an end to dog racing...

Protesters march near St Paul's Cathedral, calling for an end to dog racing...

Protesters march in Fleet Street calling for an end to dog racing. The marc...

Protesters march near St Paul's Cathedral, calling for an end to dog racing...

Protesters march near St Paul's Cathedral, calling for an end to dog racing...

Protesters march near St Paul's Cathedral, calling for an end to dog racing...

Protesters start their march outside the offices of the Greyhound Board of ...

Protesters start their march outside the offices of the Greyhound Board of ...