At various points violent confrontation between the two groups required police intervention.

He instructed them not to discuss the lack of police intervention which the public had been concerned about.

There were no reports of police intervention or of violence.

And of course the Professor had said that he preferred no police intervention in his schemes.

The situation was resolved only because of police intervention.

Increasingly, local government used its legal powers to separate out specific groups as targets for police intervention.

The result is congestion within the circle which could not clear without police intervention.

It was the first opportunity since 1951 that they could do so without the threat of police intervention.

However, there have been no reports of police intervention against members.

Whatever the case, the problem cannot be resolved by greater police intervention in the Member States.