“When many bystanders are present during an emergency, people intervene less often and less quickly than when they are the only witness.”
This phenomenon is also referred to as the passive bystander effect or the bystander effect. However, when people are made aware of their public presence in a busy social environment, for example through the presence of CCTV, they are more likely to offer their help. Reputation appears to be an important factor in the bystander effect.
(This Factsheet is only available in Dutch.)