A miscarriage sometimes happens because there is a weakness of the cervix, called an incompetent cervix, which cannot hold the pregnancy. A miscarriage from an incompetent cervix usually occurs in the second trimester. There are usually few symptoms before a miscarriage caused by cervical insufficiency.
Police perjury (or testilying in United States police  slang) is the act of a police officer giving false testimony. It is typically used in a criminal trial to make the case against a defendant who the police believe to be guilty when irregularities during the suspect's arrest or search threaten to result in acquittal.
It is an offence under s 58 Crimes Act 1900 to assault an officer in the execution of his or her duty. The maximum penalty is 5 years imprisonment. Section 60 Crimes Act 1900 sets out further offences relating to the assault of police officers while in the execution of their duty.