on suspicion

He was given no time to act on his suspicions.

Police were last night holding a 21-year-old man on suspicion of murder.

They stopped him on suspicion of having a criminal record.

Many are still based more on suspicion than solid evidence.

They couldn't hold anything against him on pure suspicion alone.

In 2005, White was stopped by police on suspicion of driving under the influence.

"We'll suggest to the police that he be held on suspicion."

She hadn't let him in on her suspicions about Shaw yet.

He is then quickly arrested by the police on suspicion of murder.

A man was arrested on suspicion of murder last night.