Speaking by telephone, district police chief Usman Anwar told VOA his men watched activities of the suspects for nearly two days before arresting them.
VOA: standard.2009.12.11
The assailant killed two Afghan policemen and wounded four, including the districtpolicechief, before he was gunned down, Koraishi said.
One elder in Jalrez district in Wardak offered his own sons for the neighbourhood watch after the districtpolicechief was killed in a Taliban bomb attack in July.
Officials say that the state government has also transferred the Lakhimpur districtpolicechief, while the cook at the police station where the incident happened has been arrested for allegedly tampering with evidence.