Русско-англо-русский юридический словарь

All non-UK students requiring a DBS Enhanced Disclosure must obtain a certificate of no criminal record/police good conduct certificate from their home country prior to enrolment. (Manchester Metropolitan University website)

Applicants for permanent residence visas are required to submit their passport, birth certificate, marriage certificate (if applicable) and a police certificate of no criminal record, issued within the last 90 days. (Brazil Immigration Laws and Regulations Handbook - Strategic Information and Regulations)

In any case, if it's for work, schooling, or travel use, having a legitimate police clearance certificate implies that you have no criminal records covering the time or stay in the nation. (Legal Service India)

The real purpose of a police clearance certificate is to prove whether or not you have a criminal record, which in many countries is called a ‘certificate of good standing’, allowing them to feel confident that they aren’t welcoming a criminal into their country. A police clearance certificate is also a requirement for people working in high security sectors, and even for people who are applying for employment locally, since many employers now insist on a PCC being part of the employment process. (Doc Assist, South Africa)